Selected 3rd Party Camera Accessories For Canon EOS Cameras - Canon EOS Technoclopedia

For a long time I refused to start a list about third-party manufacturers' camera accessories. Although I'm all ears open when it comes to reasonably priced alternatives to the original Canon products, I also prefer to buy Canon and only Canon, because their stuff simply works most flawlessly, is durable and looks the best (most important ;D). There are some exceptions, but that's pretty much it. So, since there is a whole myriad of aftermarket accessories like especially remote shutter releases and battery packs and grips, mostly useless duplicates of each other, I managed to ignore all of them for 5 years. But I can't resist any longer. The selection below will always follow the attitude outlined above, plus "Don't deal with bullshit." I will successfully continue to ignore most of it, only to settle down for an exception from time to time. So if stuff really made it on this list, it's really worth to check it out.
Table of Contents

Camera Calibration & Measurements
Delkin Sensor Scope and Digital Duster (2006) is a check and cleanining set for your DSLR image sensor. The Scope is a loupe with 5x magnification and lighting LEDs built in to locate dirt or scratches on the sensor surface (or in most cases just the UV filter infront of it). It usually ships together in a case further containing Sensor Vac (vacuum cleaner), Sensor Wands and Sensor Solution (cleaning fluid to be used with the wands), which make up the Digital Duster package. The Scope doesn't really mount to the camera, it just sits on the mount's rim. The flange focal distance of the loupe is calculated to fit Canon EOS (44.00 mm) and Nikon (46.50 mm) mounts.
Technical Specifications are as follows:
  • Scope Power supply: 2x CR2025
  • Vac Power supply: 4x AA
  • Wands: 24 pcs, double sided (the Digital Duster stand-alone package only contains 12 pcs, the refill kit without the case 15 pcs)
  • Solution: 0.5 oz (the Digital Duster stand-alone package only contains 0.25 oz)

A quite positive review is available at Luminous Landscape.
Denz-Deniz King Peter (2016) is a computer aided laser measurement system to evaluate the correct positioning of the camera's sensor relative to the image plane - the exact center (measuring any shift), rotation around the optical axis or deviation of the sensor (measuring any tilt). King Peter is not dedicated to Canon EF or any other mount as is, instead the system consists of the sensor positioning gauge and a massive flange adapter, together with the control unit.
Technical Specifications are as follows:
  • Flange adapters are available for Canon EF, Arri-PL, Panavision, MFT, Sony E and Nikon F
  • Resolution Tilt θx, θy (Sensor plane): 1.5'
  • Resolution Rotation θz (Pixel row): 0.05°
  • Measuring time: <30sec
  • Power supply: 110-230V 2A
  • Size/Weight of the Gauge: 115 x 90 x 70mm, 840g
  • Size/Weight of the Control Unit: 390 x 215 x 150mm, 4700g
Denz-Deniz FDC multi (?) is a flange focal depth measurement system to evaluate the exact flange focal distance of the camera sensor in relation to the lens mount, which allows you to determine the amount of correction required (e.g. using shims) to reach the ideal flange focal distance. The system is primarily equipped with a PL mount, but can be adapted to Canon EF and other systems as well. An FDC multi S is available as well, which is dedicated to NIR sensor systems.
Technical Specifications are as follows:
  • PL mount denomination: 52.00mm
  • Flange adapters are available for Canon EF (44.00mm), MFT (19.25mm), Sony E (18.00mm) and Nikon F (46.50mm)
  • Power supply: 3V battery or 100-240V 300mA AC (DC output 5V 1.5A)
  • Size/Weight: _ x _ x _mm, 740g

AF Assist Lights
YongNuo YN12AF AF-assistant (2014) is the first ever available stand-alone AF assist light available for Canon SLRs.
  • working range of up to 12m
  • powered by a built-in rechargeable power cell, rechargeable over USB (5V)
  • supports on/off toggle via camera flash menu, where available*
  • features a metal hotshoe

*If used ontop of radio triggers, this function requires full TTL pass-through. The device itself does not feature a switch.
In case you are into applications requiring radio triggers anyway, there are also a few models with AF assist lights integrated. Refer to Speedlites > Radio Triggers for more information.

Advanced Remote Control
The following tools are intended to be used as follow focus systems for video applications. They are connecting via USB directly with the camera. The clue here is, since they control the camera via USB, they can also control other camera functions than just focus, which makes them useful for still photography as well. You will most likely not want to use such a unit for travel photography, but in certain situations, especially studio and table-top photography, where you can mount the camera to a tripod and even connect it to a computer for remote monitoring and control, you might consider these a nice add-on. I would. It's simply not the same to control functions via software and mouse or by the help of a physical unit with a turning knob and some buttons on it.

Aputure V-Control UFC-1 (2012) is the most affordable of its kind up to date.

  • offers controls for video start/stop and still capture, focus and autofocus, ISO, aperture, shutter speed and exposure compensation
  • fully supports Live View Mode, 4 focus point presets for video mode
  • shutter release button works like conventional controllers (half-press for setting AF, full press for release)
  • compatibility is committed to Canon EOS 1D Mark IV, 5D Mark II, 7D, 60D, 500D, 550D and 600D and 1100D ("not yet compatible with the Canon 5D3")
  • features a tripod mount
  • built of plastic
  • powered by 2x AA, lasting for 40 hours
  • 114.5 x 57.5 x 49.2mm
  • comes in a brown leather case

CamFi Remote Camera Controller (2015) is a WiFi transmitter. It allows full remote control as well as it serves as wireless view finder. Supported are Android and iOS devices as well as Windows and Mac OS machines.

  • features a timelapse mode (supports to set a delay, number of pictures and shooting interval)
  • supports bulb mode
  • supports transmission of RAW files
  • supports Android TV
  • supported Canon EOS models: 1Dx, 5Ds /R, 5D Mark II/III, 6D, 7D Mark I/II, 70D - 50D, 700D - 500D, 100D, 1200D and 1100D
  • also compatible with selected Nikon cameras
  • WiFi range: 50m
  • powered by 1800mA Lithium battery, lasting for 6 hours
  • size: 90 x 44 x 26mm
  • weight: n.a.

CamFi Matrix (2017) is a companion freeware package for CamFi remote units, which allows to control multiple cameras simultaneous via Wifi or Lan, given that each camera is equipped with its own CamFi unit.

Cinematics USB Focus Controller (2011) and 3D Focus Controller
  • the so called upgraded version* offers pretty much the same design, feature set and price like the Okii (see below)
  • according to Cinematics it works with passive USB extensions up to 50m
  • the 3D model adds the capability to control 2 cameras at the same time

*There is a review available at DSLR News Shooter outlining some differences.
PrimeCircle K-Circle (~2015) is another more advanced wireless USB camera remote controller aiming at cine geeks.
  • remotely controls focus, toggles live view and allows for zoom in there, changes ISO, shutter speed, aperture and exposure compensation values, white balance and allows to set and recall focus points
  • compatibility is committed to Canon EOS 500D - 650D, 60D, 7D, 6D, 5D Mark II + III, 1D Mark IV, 1D X and 1D C (guess it doesn't stop there, but my manual dates back to 2015)
  • radio frequencies used are 868MHz for EU and 915MHz for US marketed devices, working range up to 100m
  • powered by a 7.4V 1020mA Li-Ion battery
  • size is 142 x 85 x 64mm, weights in at approx. 300g

 Okii Systems FC1 (2011) was the original one, the first of its kind on the market. It looks a bit like the Birger controller.

  • offers controls for video start/stop and still capture, Live View on/off, focus and autofocus, ISO, aperture, shutter speed, exposure compensation and AF point selection (not available during recording though)
  • can save up to 4 focus points as presets and supports Live View Mode (incl. 1x, 5x and 10x digital zoom)
  • no half-press/full-press shutter release function (requires to press AF and then shutter release button each time)
  • compatibility is committed to Canon EOS 1D Mark IV, 1D X, 5D Mark II (and as of 10.2012 MkIII as well*), 7D**, 60D, 500D, 550D and 600D
  • works with all Canon, Sigma, Tamron and Tokina** AF lenses
  • features a tripod mount
  • works with passive USB extensions (tested up to 25m)
  • built of 6061 aluminum (CNC machined)
  • powered by 2x AAA, lasting for 30+ hours
  • 68.5 x 68.5 x 40mm, 133g

Patima also offers the FC1 in a package with an underwater housing as accessory to their Canon EOS 5D Mark III cine housing. Refer to System Cameras > Accessories > Underwater Housings for details.
*It seems like there was some kind of firmware upgrade since the first release. The original Okii specs do not mention the 5D III, but recent shop listings do. Looking at the 5D III issue of the Aputure controller (not yet supported ...) supports the impression of a differing USB protocol. The Cinematics review at DSLR News Shooter supports that idea as well.
**Lock-up problems are reported for Canon EOS 7D using Tokina lenses, if the focus command rate is set higher than the lens can actually focus.

Sevenoak USB Focus Controller SK-F01E (2011)
  • controls focus with AF lenses (at adjustable constant speed rates), start/stop video recording or release shutter for image capture, toggles Live View (supports digital zoom for precise focusing)
  • features a tripod mount
  • powered by 2x AA
  • size and weight are not clear, manual states 72 x 72 x 49mm, 73g, website states 120 x 100 x 105mm, 250g
  • compatibility is committed to EOS 500D, 550D, 600D, 60D, 7D, 5D Mark II and 1D Mark IV

More USB Focus Controllers:
  • Polaroid PLFCUSB (photo and video modes, control over exposure and focus)
  • Vello FreeWave Stryker Lightning/Motion Trigger [RC-LMC] []
  • Vello FreeWave Stryker II Motion/Sound/Lightning Trigger [RC-LMCII] []

Sensor Triggered Shutter Releases

AEO Photo (Adams Electro-Optics Photo, 2009) started with a series of rather simple light sensor triggers. The MT models are little more advanced light and motion triggers and in 2012 AEO is going to add an EMF trigger as well. There really is no science factor here: Just mount one of the sensors to the camera's hot shoe (or tripod nearby) and connect it via cable to the remote release port of the camera. System ready.

Model History:
  • AEO Lightning Strike!: the original model, featured a fixed camera cable (?), powered by a 6LR61 (9V)
  • AEO Lightning Strike! II: powered by a 6LR61 (9V)
  • AEO Lightning Strike! Pro: as above, plus sensitivity control, comes in a Pelican case
  • AEO Lightning Strike! Micro LS 3.0: powered by 1x 4LR44 (6V) or 2x 1/2 AA (3.6V)
  • AEO Lightning Strike! Pro Micro LS Pro 3.0: features sensitivity adjustment, a locking hot shoe and tripod mount
  • AEO MultiTrigger Pro: light and PIR motion trigger
    - features sensitivity adjustment and locking hot shoe/tripod mount, powered by a 6LR61 (9V), comes in a Pelican case
  • AEO MultiTrigger Pro 3.0 Micro MT-Pro 3.0: light and PIR motion trigger
    - feat. sensitivity adjustment and locking hot shoe/tripod mount, improved noise immunity, powered by 2x 1/2 AA (3.6V), comes in a Pelican case
  • AEO Spectral Detector:
    - EMF-PIR trigger (announced for Summer 2012), triggers on magnetic field events (mGauss/sec adjustable) and motion caused by living objects with a decent thermal radiation
  • AEO RS60-E3: cable to connect the sensor triggers to E3 compatible Canon EOS cameras
  • AEO RS80-N3: cable to connect the sensor triggers to N3 compatible Canon EOS cameras

Technical Specifications:
  • Common Shutter Release Trigger Lag: 0.1ms
  • MT PIR Range: 10m
  • Size MT 3.0: 70 x 57 x 19mm

The following reviews are available: John Birch on the original Strike!, Ben Neumann on the Strike! II and Tom Redd on the Strike! Pro
Camtraptions launched their PIR Motion Sensor (2014), a complete module to be wired directly to the camera using the Canon's N3 or E3 remote port. The units are powered with 6 AA cells. While with the first version of the units (black painted case) the batteries lasted over a period of a month, with the 2017's version (olive green housing) that could be extended to approx. 3 months.

FlagHead Photographic introduced the TriggerSmart (SabreSwitch 2012), an out-of-the-box remote shutter release system triggered by sensors for sound, light intensity, movement or by an infrared beam. The release lag is short enough to use the sound trigger mode to shoot gun shots and their results. With the help of the MCT-1 control unit you can adjust sensitivity of the sensors and delay of shutter release. It's also possible to connect and trigger secondary photo equipment like more flashguns, a backup camera, photofloods etc..

Modules & Parts:
  • Sabre Switch MCT-1 Motion Capture Control: the heart of the system
  • Sabre Switch TT-6:
    - 240V power timer and controller (the manual delivers a quite cryptic description, no idea what it's good for other than powering and timing photoflood lamps)
  • Sabre Switch IRRX-1 Infrared Receiver & Light Intensity Sensor
  • Sabre Switch IRTX-1 Infrared Transmitter & Sound Sensor
  • Sabre Switch IRTXB-1 Infrared Transmitter (battery powered unit; same price as TSIRTX-1)
  • Sabre Switch IRTX-1WL Infrared Transmitter WL (autonomous battery powered unit (WL = wireless); same price again)
  • Sabre Switch IRRX-1WL Infrared Receiver WL
  • Sabre Switch AS-1 Infrared Alignment Aid (checks IR transmitter/receiver alignment and warns, if unaligned)
  • Sabre Switch TS-1 Tilt Sensor
  • Sabre Switch WP-1 Weatherproof Sensor Cover WP-1
  • Sabre Switch MP-1 Mains Adaptor (AC input 100 - 240V)
  • Radio Link Kit:
    - (radio units to connect to the sensor receivers and MCT-1 for true wireless operation; announced for late 2012)
  • CF00970 cable for Canon EOS 30, 33, 50, 300, 300D, 350D, 400D, 450D, 500D, 550D, 60D
  • CF00971 cable for Canon EOS 1V, 3, 10D, 20D, 30D, 40D, 50D, 7D, 1D series, 1Ds series, 5D Mark I + II
  • Stakepods [ST-1] to push into ground and directly mount a sensor module on it, ground cable anchors (for outdoor use again)

Technical Specifications:
  • Delay Times: 1/1000 - 10s
  • Trigger Times: 1/200 - 5s
  • IR Beam Range: 0.2 - 2m | Wavelength: 850nm | Coverage: 8° (2° with focal baffle)
  • Flash Sensor Response: 1 - 1500lum | Sensitivity: 10lum
  • Sound Sensor Frequency Range: 50 - 5000 Hz
  • Tilt Sensor Response: 5° and more
  • Max. Trigger Voltage: 50V 100mA
  • Radio Link Working Distance: <100m
  • Weather Sealing: IP53 (safe against harmful dust and rain entering at an angle of up to 60° from the corner to the outer shell)
  • Power MCT-1: 4x AA non-rechargeables, 6 - 9V DC (MP1 mains unit recommended)
  • Power AS-1: 2x AAA | IRTXB-1: 3x AAA
  • Size MCT-1: 190 x 140 x 50mm | Sensors: 75 x 50 x 26mm
  • Weight MCT-1: 325g | Sensors: 43g | Tripods: 33g

Read a review at

Hähnel released the Captur (2015), a modulary 2.4GHz radio flash trigger and event triggered shutter release system.

  • Transmitter C (for Canon)
  • Receiver C (for Canon)
  • transmitter and receiver make up for the basic system to remotely trigger speedlites or the camera shutter
  • feat. digital channel matching and a working range of 100m
  • powered by 2x AA cells each
  • Module - Timer: an intervalometer for the system
  • supports basic remote shutter release functions as well as delay timer, interval timer, exposure count and exposure length setup
  • feat. a working range of 100m
  • powered by 2x AA cells
  • Module - Pro: the full package
  • incorporates an intervalometer (features identical to the timer module above) and sensors for light, sound and motion, as well as a port for external 3rd party sensors
  • the package further includes Module - IR (see below)
  • all feat. a working range of 100m
  • powered by 2x AA cells
  • Module - IR: an IR transmitter to be used in conjunction with the Receiver C to set up IR traps
  • not going to be sold separately
  • powered by 2x AA cells
Mumford Micro Systems' The Time Machine (2001) "[...] is a programmable intervalometer/controller for unattended, triggered, high speed and time lapse photography. It responds to a variety of input sensors, calculates a variety of delays and sequences and provides outputs. Inputs may be sound, light, motion or electrical signals." (
The Moco Time Machine "[...] is a special version of The Time Machine made for motion control applications. It contains most of the functions of the "standard" Time Machine, but adds expanded features for motion control projects. [...] The standard Time Machine is limited to 256 motor steps per frame. The Moco Time Machine supports up to 9,999 motor steps per exposure, with smooth ramping up and down." (
That said, the system is pretty comprehensive with its choice of 2 central control units (see above, in the following abbreviated to TTM), a wide range of sensor types and further accessories (see below).

  • Microphone Sensor
  • Acoustic Vibration Sensor with alligator clip
  • Flat Disk Acoustic Sensor: higher sensitivity then clip-on version
  • Optical Interrupter: a base with 2 small posts on it with an IR barrier in between
  • Laser Optical Sensor: a set consisting of 2 modules for bigger setups then the above, one with laser source and photo diode (for mirrored applications), the other one with photo diode only (if no mirror is used)
  • Laser Sensor For Crossed Beams: an add-on to the above, triggers on break of either both or only one of the laser barriers (beams don't necessarily cross actually)
  • IR Beam Sensor: consists of a module with IR source and photo diode and a mirror
  • IR Sensor For Crossed Beams: an add-on to the above, triggers on break of either both or only one of the IR barriers (beams don't necessarily cross actually)
  • Long Range IR Beam Sensor
  • Reflective Optical Sensor: registers objects near its tip
  • Motion Sensor: PIR type, registers living objects emitting thermal radiation
  • Ballistic Sensor: recognizes a gun shot, so TTM can calculate the shutter release for a predefined position of the projectile
  • Fast Optical Detector: a PIN photo diode measuring electronic flash speeds and lag times
  • 24 Hour Time Lapse Timer: used to limit time lapse applications to the period of the selected hours
  • Time Lapse Light Sensor: used to limit time lapse applications to the period of either day- or nighttime

  • Flash Sequencer: controlled by TTM, triggers an array of up to 4 flashes, each individually timed (required if flash reload of a single flash will take too long)
  • 8 Channel Flash Sequencer: like the above, just 8 flash ports
  • Drip Kit: a set consisting of a control unit, a fluid reservoir with electric water valve and tripod mounting plate and a wired drop remote release
    - allows TTM to automatically emit drops of various fluids for the purpose of photographing them at a defined position; TTM will control number of drops, size and timing and will control the camera shutter accordingly
    - older TTMs are not yet compatible with the Drip Kit and will need a chip upgrade (replacement)
  • Standard Rotary Table: stepper motor driven Ø10.2cm 4.3kg camera mount, that rotates the camera for each frame at a predefined angle (pan head)
  • Enhanced Rotary Table: allows much finer increments of motion and can be programmed to start standing still, then start moving, gaining in speed up to a defined level, slow down again and finish with no motion
    → the Rotary Tables can also be used to power small DIY dolly tracks
  • Miniature Rotary Table: the mobile Ø6.4cm version at approx. 1.3kg
  • Shutter Release Cable: camera model specific remote shutter release to connect TTM to the camera, available for Canon E3/N3 and others
  • LANC Interface Cable: starts/stops filming
  • AC Adapters are available for America (120V) and the rest of the world (120 - 240V with exchangeable plugs)

Technical Specifications:
  • IR Standard Beam Range: 7.6m | Long Range module: 15.2m
  • Reflective Optical Sensor Range: 12.7mm
  • Motion Sensor Range: 9.1m | FOV: 60°
  • Sensor Cable Lengths: 1.8m
  • Connectors: 3.5mm jack ports
  • Power Main Unit: 6LR61 (9V) internally or 12V AC adapter (incl.) or battery external
  • Power Sensor Modules: 6LR61 (9V), motion sensor is powered by TTM
  • Power Rotary Tables: 12V AC adapter (included) or external battery (12)

*The Canon specific IR Emitter being available emulates the Canon WL-DC100 (for Canon PowerShot G series, Pro 90IS, S60, S70 ...) and will not work with Canon EOS cameras.

Nero Trigger (2013) is an all in one solution offered by Eron Elektronik, Bilgisayar ve Yazilim San. Tic. Ltd. Sti. located in Istanbul (Turkey). responding to sound, light and laser, additionally providing timelapse and HDR modes as well as a port to plug-in your own sensors or event triggers.

Technical Specifications:
  • Mounting: via hot shoe (dumb), wire-connections to the camera and a speedlite
  • Compatibility: C6 sets for E3 type remote port cameras (EOS 300D - 650D, 60D, 1000D ...), C8 sets for N3 type remote ports
  • Timelapse Mode supports intervals between 1s and 59''59s and is limited to a 9999 max. number of frames
  • HDR Mode triggers your camera a multiple times with different exposure values
  • Power: 2x AAA
Patchmaster is another company offering plug 'n play event triggers.

Models and Parts:
  • Lightning Trigger: offers manual adjustment of sensitivity; 100 x 60 x 35mm; triggers the camera
  • Sound Trigger: manual adjustment of sensitivity and delay (0 - 1000ms); 100 x 60 x 20mm; triggers the flash via 3.5mm output, not the camera!!
  • 3-in-1: triggers on lightning and laser beam break and provides an intervalometer for time lapse shooting; 100 x 60 x 35mm
    - the laser detector can be manually adjusted to trigger delays between 0 and 1000ms
    - the timer provides 8 different presets (3s ,5s, 10s, 20s, 30s, 1min, 5min, 10min), no manual settings possible

Common Technical Specifications:
  • Power: 6LR61 (9V)
Stepping Stone Lightning Trigger (1998) seems to be the oldest solution. Like the AEO Photo Strikes! it's a very simple device to plug onto the camera or a nearby tripod, connected to the camera via remote shutter control port. Triggers at lightnings, fireworks, flash strobes, IR bursts etc..

Technical Specifications:
  • Lightning Sensor Range: 20 miles at day, 40 miles at night
  • Power: 6LR61 (9V)
  • Size: 126 x 70 x 35mm
  • Weight: 142g

There seems to be a huge number of reviews, see a list here. Didn't check all of them. However, find one at Luminous Landscape.

Ubertronix ... what a freaking great company name :D. They offer the StrikeFinder triggers, including a StrikeFinder App for iOS 4.0+. So, theoretically, if you were into hacking, you might even be able to turn any iOS driven mobile camera into a remote shutter release trigger, depending on the resulting lag ... I don't have a clue. Well, back to the facts :P. Same simple setup like many of the other triggers above - mount to camera hot shoe or tripod nearby, plug in the dedicated camera remote cable and there you go.

Models and Parts:
  • Strike Finder: triggers on lightning only
  • Strike Finder Pro: features an intervalometer (1sec - 10min) and sensors for lightning and laser*
  • Strike Finder Pro II: comes with sensors for sound, light bursts and laser*
  • Strike Finder Elite: detects lightning, laser*, sound and motion (the latter 2 sensors are external and connected via cable, if needed)

Common Technical Specifications:
  • Weather Sealing: no
  • Power: 6LR61 (9V)
  • Size: 112 x 66 x 22mm

More Models:
  • Strike Finder Touch (2014): control unit with timelapse function and light/laser* sensor, features additional ports for external sound and motion sensors
  • Power: 4x AAA or optional VDC adaptor (US only)
  • Size: 102 x 57 x 25mm

*Light barrier break triggering, no laser included.
More Sensor Triggered Shutter Releases:  
  • Eltima Electronic light barrier systems including Joker (gen. 1 in 2003, gen. 2 in (?)), Jokie (gen. 1 in 2003, gen. 2 in 2010) and more []
  • Jama Photo BIR2, BIR3, BIR4 IR barriers and more
  • TrailMaster IR Monitors, Intervalometer, Multi-Camera Trigger and more []

Geotagging Solutions
Early Innovations GPSPhotoLinker (since 2004) std. version is a popular piece of freeware for Mac OS. You take whatever GPS device you have available, that can export GPX or TCX tracking files (or have your unit's format converted to by using GPSBabel, another freeware available for Win, Mac and Linux). GPSPhotoLinker reads the time of creation from the pictures and then adds the proper GPS data from the track file to the EXIFs. RAW, JPG and TIFF picture formats are supported. For Windows check out GeoSetter (since 2007).

GiSTEQ PhotoTrackr Mini DPL900 does not require any connection to the camera. It continuously records time and position. The GPS data is written into the EXIFs after uploading the pictures and the GPS data to a PC or Mac using the included PhotoTrackr software. To get correct results, the camera clock necessarily needs to be synchronized with the PT's clock.

Technical Specifications:
  • Accuracy: 2m (?)
  • Internal Memory: lasts for 131072 locations (2MB)*
  • Output: USB
  • File Support: JPG, RAW

The older PhotoTrackrs DPL700, CD110BT and CD111 work similarly, but I can't find complete specs. The CD110BT somehow adds Bluetooth, not sure for what function exactly. The DPL700 runs on a single AA battery (22 hours), where the CD units both feature a built-in rechargeable.
Known Issues: The standard software only works with JPG files. For tagging RAW files you'll need to buy the Pro version. Compatible are EOS D2000, D30, D60, 300D, 350D, 400D, 10D, 20D, 30D, 40D, 50D, 60D, 7D, 1D Mark II /N /III, 1Ds Mark II /III, 5D Mk I /II RAW files (as of 2012-09-28). To update the units firmware, also the Pro version is required. If you buy this used, take care you get the corresponding old software package, because newer versions will refuse to work until you update the firmware. At least the older versions of the software are also reported to require the installation files kept on the computer in order to run.
*The specs say "2MB [...] 16 bytes binary data per record that stores up to 250K", well ... 2MB = 2097152 byte : 16 = 131072 positions. PT can be set up to record positions up to every single second (131072 positions = 36h 24min 30sec, max. interval is 30mins) or every 2 meters.

Jobo PhotoGPS (2008) seems to be the only device available, which mounts to and is triggered via hot shoe (X contact, thus working with all the EOS cameras not yet compatible with the Canon GPS modules). It records the time and position of every shot and merges the data into the EXIF files of the pictures, when both pictures and GPS data are uploaded to a PC or Mac. There are 2 versions. The original one is the plain black one (#GPS001, released in 2008). The advanced one features a more refined design (#GPS512). It's selling as PhotoGPS 4, but is actually not labeled accordingly.

Technical Specifications:
  • Accuracy: 10m
  • Internal Memory #GPS001: lasts for 1000 locations (128MB)
  • Internal Memory #GPS512: lasts for 4000 locations (?)
  • Output: USB 2.0
  • File Support: JPG, RAW, XMP
  • Power: Internal 120mA Li-polymer rechargeable
  • Size: 68 x 43 x 20mm
  • Weight: 80g

Known Issues:
    1) The PhotoGPS modules both feature a plastic mount. The first version is reported to tend to fall off the hot shoe too easily (which resulted in a lot of people complaining about having lost their device sooner or later). Use some tape to hold it in place tightly. This issue has been fixed for the advanced version.
    2) To transmit the GPS data to the EXIFs you need to be connected to the internet and to the Jobo servers. I actually don't fully get the hows and whats, but the PhotoGPS will download some required data from a Jobo server. That means the whole story only works as long as Jobo exists and runs this server.
    3) The units don't work on open water locations (oceans).
    4) The servers, that provide the GPS data conversion index (the system seems to work like IP/DNS), were shut down at the end of 2015. Jobo is unable to provide a fix for this situation and thus the units will no longer work.

Just in case you do use your camera with a WFT unit*:
Dawntech's di-GPS USB physically mounts to the hot shoe and connects via USB to the WFT. The GPS data is directly stored in the EXIFs.  

Technical Specifications:
  • Accuracy: 2m
  • Output: USB 1.0
  • File Support: JPG, RAW
  • Power: USB
  • Size: 44 x 36 x 12mm
  • Weight: 30g

*Note: Only WFT-E2 to E5 and E7 will do. The WFT-E1 and E6 don't feature a USB port.
**Also have a look at this discussion at DPreview. It implies the use of various GPS units via WFT and Bluetooth instead of USB. The Kensington micro USB Bluetooth 2.0 for example is reported to work and extremely small. However, none of those solutions are covered in the GPS unit's manuals or manufacturer's descriptions.

More Geo Taggers:
  • Bilora Photo Geotagger GT-01
  • Marrex MX-G10 and MX-G10M (2014)
  • Marrex GPS-C1 (2016)
  • Solmeta Pro2-EOS (~2014)

Image Stabilizer
SteadXP+ (announced for 10.2016) is the first ever external unit to help stabilizing hand-held footage.
The units are of approximate size of a Canon ST-E3 and as well can be mounted to the camera's hotshoe. The working principle differs from traditional built-in IS systems. It does not 'stabilize' the camera, but records the movements of the camera during the shot to a file. After uploading both the video and motion data files to a computer, the supplied software will evaluate the movements and apply changes to the video frames accordingly to smoothen shaking effects. Currently the units are available via Kickstarter campaign, which means they are not yet ready to be produced or shipped. The supplied demonstration videos look very promising so far. Due to the nature of the working principle the SteadXP is not applicable to still image photography, but clearly targeted at video recording.
Technical Specifications:
  • Storage: Micro SD (FAT16/32, 1 - 32GB)
  • Power: GoPro® AHDBT-302 Li-ion Polymer Battery Pack (3.7V 1180mA 4.37W, BLE 10-12h, rechargable over micro USB, not included)
  • Size: 60 x 40 x 30mm
  • Weight: 84g

Dan Chung published a detailed review of a SteadXP prototype.
*SteadXP is offered in 2 different versions. SteadXP@ is only compatible with GoPro Hero 2, 3, 3+ and 4. SteadXP+ is for all other cameras.

Sound Blimps
Sound Blimps are extra housings similar to camera armor, but instead of protecting from shock their job is to reduce noise polution emitted from the camera body - mainly caused by the shutter and mirror movements.
Just a quick selection:
  • AquaTech Sound Blimp Shadow 1D X
  • shutter noise reduction >90%, Polyurethane, 1.35kg, works with Canon EOS 1Dx Mark I/II and 1Dc
  • AquaTech Sound Blimp Scout 5D Mark III
  • shutter noise reduction >90%, Polyurethane, 1.10kg, works with Canon EOS 5D Mark III/IV, fits 5D Mark II (no rear controls accessable)

Wireless HD Video Transmission Over HDMI or SDI
With the release of the Crystal Video CVW 100 some blogs started to rave about an affordable wireless HD video transmission solution, which made me look into its field as well and add some here. At the end, looking at price tags, I can't find the 'affordable' part. Indeed cables can be a pain in the ass, but on the other hand they turn out to be a bargain compared to radio systems. But ... as with some other cool stuff collected all over the Technoclopedia, there is still a good point to considering radio technology. In this case it's not the price at all, but transmission distance. And last but not least it again all depends on the point of view. If you look at a set of Anton Bauer Gold Spectrums throwing in a ridiculous 23000$ per set while not even offering an HDMI option, the selection below is almost a gift. Still the so much hyped Crystal Video units rather aren't the most affordable choice, nor are the choices within the same price range that new.
Note: If not otherwise specified, the listed systems support full 1080p 60Hz HD video with data being transmitted uncompressed.
Bon Electronics SDI Wireless Transmitter BW-100ST + Receiver BW-100SR (2012)
  • SDI and HDMI
  • transmitter provides a 3.5mm mic-in port
  • transmission frequency of 5.15 - 5.25GHz (U-NII-1) or 5.725 - 5.85GHz (U-NII-3)
  • working range of up to 150m with standard antenna, up to 500m with directional antennas
  • encoding/decoding in H.264 Base Profile @4.2
  • encryption according to HDCP 1.1 and in 128bit AES
  • supports up to 3 or 4 (?) receivers per transmitter (to the cost of transmission range)
  • powered by a battery (V or DV mount) or a 7 - 17V DC source
  • size of 152.2 x 90 x 42.2mm per unit
  • weight of 870g per unit

Besides the BW-100S system Bon also offers the BW-100M (HDMI only, 127.5 x 90 x 26.6mm, 470g, DV battery mount only) and the BW-100SV (152.2 x 90 x 42.2mm, 1020g, V-mount battery only). The BW-100M goes for approx. 1600€, the S and DV systems almost double the price.
CMR Radian Pro and Radian MC (2013) CMR is the shorty for Camera Motion Research.
  • HDMI
  • supports a huge range of audio formats incl. 12S, PCM, SPDIF, AC-3, DTS and Dolby 5.1
  • transmission frequency within 5GHz range (dynamic channel selection)
  • working range of up to 91.4m (line of sight)
  • transmission delay <2ms
  • encryption with 128bit AES
  • supports up to 4 receivers per transmitter (Radian MC only)
  • transmitter powered over mini USB
  • transmitter size of 94 x 30.5 x 15.2mm, weight of 36.9g (dongle style)
  • receiver powered by a 5V DC source (barrel 3.5mm)
  • receiver size of 99 x 55.9 x 22.9mm, weight of 76g

Pricing: A set of Radian Pro comes for 850$, pay 1150$ for a basic MC set of transmitter and receiver.
Crystal Video CVW 100 (2014)
  • HDMI
  • transmitter provides a mic-in port
  • transmission frequency of 5.1 - 5.9GHz
  • working range of up to 100m
  • encryption with HDCP 1.2
  • transmitter [#CB8822] powered by a Canon LP-E6 or 6 - 17V DC source
  • transmitter size of 118 x 54 x 43mm
  • transmitter features a hotshoe mount
  • receiver [#CB3812] powered by a Sony NP-F570, NP-F750 or 6 - 17V DC source
  • receiver size of 118 x 60 x 45mm

Crystal Video CVW Pro 300 (2014)
  • HDMI and SDI
  • external antennas
  • supports PCM, DTS-HD nad Dolby TrueHD audio formats
  • supports timecode
  • transmission frequency within 5GHz range
  • working range of up to 300m
  • transmitter [#CC8980] powered by a 6 - 17V DC source
  • transmitter size of 126.5 x 75 x 31.5mm
  • receiver [#CC3865] powered by a 6 - 17V DC source
  • receiver size of 155 x 111 x 32mm

As for the price tag, the units are not yet available in stores. Rumours claim a final price at around 1100$ for the CVW 100. The CVW Pro 300 was advertised at Photokina 2014 and isn't even present at their homepage at the moment.
IDX Cam~Wave CW-1 (2012)
  • HDMI
  • supports uncompressed signals up to 1080i60 (1080p29.97)
  • transmission frequency of 5.27 - 5.67GHz (5 channels with dynamic frequency selection)
  • working range of up to 91.4m
  • transmission delay <1ms
  • transmitter powered by Sony L series (use optional A-CWS-TX adapter) or JVC SSL-JVC50 batteries (use optional A-CWJ-TX adapter) or over USB
  • transmitter size of 91 x 30 x 15mm, weight of 20g
  • receiver powered by Sony L series (use optional A-CWS-RX adapter) or JVC SSL-JVC50 batteries (use optional A-CWJ-RX adapter) or a V DC source
  • receiver size of 96 x 56 x 20mm, weight of 60g

The IDX CW-1 is one of the cheapest wireless transmission systems available with only 740$ a pair. But you will not achieve 1080p60 and the battery adapters are extra, too. Further available are the IDX Cam~Wave CW-3 (2014, 3G-SDI), Cam~Wave CW-5HD and -7 (2008 resp. 2013, HD-SDI) and Cam~Wave CW-F25 (2015, H.264 3G-SDI) systems.

Marshall Electronics WP-1C and WP-2C (2013 ?)
  • HDMI
  • transmission frequency of 5.23GHz
  • working range of 30m
  • transmission delay <1ms
  • encryption with HDCP
  • both transmitters are powered over mini USB
  • WP-1C includes the V-WHT-B belt clip transmitter, which also provides 2 Canon LP-E6 slots
  • WP-2C includes the V-WHT-A dongle style transmitter
  • the receiver [#V-WHR] is powered by 2x Canon LP-E6 or a 12V DC source

The dongle transmitter sets sell for around 800$. For the belt version sets add another 100$.

Nyrius Aries Pro (2013 ?) are the real cheapos with all the usual pros and cons - the pros primarily to find at its price and the cons mainly to look for at quality issues and feature limitations. The units are made for home use only (e.g. PC to TV video signal streaming), but are reported to work as HDMI transmitters with for example the EOS 5D Mark II or other semiprofessional cameras as well. At least according to some available forum postings a lot of people seem to experience harsh quality issues with their samples, where others do not. This would mean you probably first need to track down a well working set before taking it into production. See Blackmagic Forum and DSLR Film Noob to get a picture. After all it seems worth it, since even after a later upgrade to the Paralinx Arrow the Aries Pro can still be used in one set (reported to be compatible).

  • HDMI
  • supports up to 5.1 Dolby
  • built-in antennas
  • transmission frequency of 5.15 - 5.85GHz
  • working range of 50m
  • transmission delay <1ms
  • transmitter and receiver powered over mini USB
  • transmitter sized 98 x 29 x 14.5mm
  • receiver sized 99 x 56 x 20.5mm

The Nyrius Aries Pro is on offer for something around 250$ a pair.
Paralinx Ace (2015) is the successor of the Arrow (see below). Housings are made of aluminum and ABS.
  • HDMI or SDI
  • working range of up to 100m
  • transmission delay <1ms
  • supports up to 4 receivers per transmitter
  • powered by 7 - 17V DC sources (PTap cable for TX and AC adapter for RX included, onboard battery plates for LP-E6, NP-F or BP-U optional)
  • transmitter size of 119 x 67 x 15mm
  • transmitter weight of 126g (HDMI) or 146g (SDI)
  • receiver size of 115 x 86 x 15mm
  • receiver weight of 146g (HDMI) or 160g (SDI)
  • Mini USB for firmware updates

In 2016 the Ace was updated with a 2pin Lemo power connector and optimized chassis.
Paralinx Arrow (2012) consisted of the Arrow PX888T(ransmitter) and PX888R(eceiver). The original units did already share most of the features of its successor - the Arrow+.

Paralinx Arrow Plus (2013): A notable difference between the Arrow and the Arrow Plus resulted from the use of superior electronic parts, which then allowed to couple multiple receivers to each transmitter.

  • HDMI
  • supports up to 7.1 Dolby
  • built-in antennas
  • transmission frequency of 5.1 - 5.8GHz
  • working range of up to 100m (free line of sight, otherwise half of it)
  • transmission delay <2ms
  • encryption in 256bit
  • supports up to 4 receivers per transmitter
  • transmitter powered over mini USB
  • transmitter size of 94 x 33 x 13mm
  • receiver powered by a 5V DC source (its mini USB is only used for firmware updates)
  • receiver size of 102 x 61 x 25mm

Paralinx' Arrow-X (2014) again pushes a few steps forward and presents the professional version in the Arrow line.
  • HDMI or SDI
  • transmission frequency of 5.1 - 5.8GHz
  • working range of up to 215m
  • transmission delay <1ms
  • encryption in 128bit AES
  • supports up to 4 receivers per transmitter
  • transmitter size of 108 x 67 x 21mm and a weight of 178g (aluminum chassis, excluding antennas)
  • transmitter input: HDMI
  • receiver size of 143 x 128 x 33mm and a weight of 340g (PCB chassis, excluding antennas)
  • receiver output: Dual 3G-SDI 

Paralinx' Triton 1:1 (2015).
  • HDMI
  • external 2dbi antennas on the transmitter
  • transmission frequency of 5.1 - 5.8GHz (8 channels)
  • working range of up to 140m
  • transmission delay <1ms
  • encryption in 128bit AES
  • supports an unlimited number of receivers per transmitter
  • transmitter size of 118 x 52 x 43mm and a weight of 130g (excluding antennas)
  • transmitter features a cold shoe and an additional tripod mount
  • receiver size of 118 x 60.5 x 44.5mm and a weight of 136g
  • transmitter and receiver can be powered by Canon LP-E6, Sony NP-F550 or 6-17V DC power units

The Paralinx Arrow Plus sells for approx. 1100$ a pair, the Triton's MSRP is close to 1400$. The Arrow-X basic system already hits the 4k mark and additionally requires power cables, battery plates, antennas and other options. The Arrow-X is also available for SDI input. The Arrow and Arrow Plus can only be used for SDI input with a SDI-HDMI converter like the Paralinx Crossbow. And of course we got the Tomahawks (600m range and more using special antennas) for HDMI and SDI each exceeding the 7k mark. Just to provide a little completeness for this entry.
Teradek Beam (2014)
  • SDI
  • support for 2 audio channels
  • external antennas
  • transmission frequency within U-NII-1 (5.15-5.25 GHz) or U-NII-3 (5.725-5.85 GHz)
  • working range of 760m (±200m)
  • transmission delay 90 - 110ms
  • encryption in 128bit AES
  • supports up to 4 receivers per transmitter
  • receiver and transmitter powered by a 7 - 17V 12W DC source
  • receiver and transmitter sized 170 x 105 x 28mm
  • transmitter weights 990g
  • receiver weights 610g

Teradek Bolt and Bolt Pro (1st Generation 2012/2013)
  • HDMI or SDI (non-Pro Bolt HDMI only?)
  • support for 2 audio channels
  • built-in antennas
  • transmission frequency within 5GHz range (dynamic channel selection)
  • working range of up to 91.4m
  • transmission delay ~0ms
  • encryption in 128bit AES
  • Bolt Pro supports up to 4 receivers per transmitter
  • transmitter powered by a 6 - 28V DC source (Lemo connector), Pro transmitters come with internal battery (lasts for ~1hr)
  • transmitter is sized 110 x 58 x ??mm and weights 198.5g (aluminum chassis)
  • transmitters come with hotshoe mount
  • receiver powered by a 6 - 28V DC source (Lemo connector), Pro receivers come with internal battery (lasts for ~1hr)
  • receiver is sized 110 x 75 x ??mm (ABS chassis)

Teradek Bolt Pro 2000 (1st Generation 2012/2013)
  • SDI
  • support for 2 audio channels
  • external antennas
  • transmission frequency of 5.1 - 5.8GHz (dynamic channel selection)
  • working range of up to 609m
  • transmission delay ~0ms
  • encryption in 128bit AES
  • supports up to 4 receivers per transmitter
  • transmitter powered by a 6 - 28V DC source (Lemo connector)
  • transmitter is sized 109 x 66 x 25.4mm and weights 249g (aluminum chassis)
  • transmitters come with hotshoe mount
  • receiver powered by a 6 - 28V DC source (Lemo connector)
  • receiver is sized 152 x 117 x 25.4mm and weights 476g (aluminum chassis)

Teradek Bolt Pro 300, 600 and 2000 (2nd Generation 2014)
  • SDI, HDMI or both (the 2000 is Dual SDI/HDMI only)
  • incorporate the Teradek Grab video engine to allow direct output via USB 3.0
  • internal antennas for the Pro 300, external antennas for the Pro 600 and 2000
  • support 48kHz 24-bit PCM
  • transmission frequency within 5GHz range (dynamic channel selection)
  • working ranges of up to 91.4m (Pro 300), 182.8m (Pro 600) and 609m (Pro 2000)
  • transmission delay <1ms
  • support up to 4 receivers per transmitter
  • receivers now are fanless
  • Pro 300 transmitters are sized 112.3 x 66.1 x 27mm and weight 262g
  • receivers are sized 146.5 x 88.9 x 25.2mm and weight 346g (aluminum chassis)
  • units are powered via 2-Pin Lemo, 7 - 28V DC, TX 6.5W, RX 8W (no battery option)
  • Pro 2000 transmitters are sized 109.2 x 66 x 26.8mm and weight 270g (aluminum chassis)
  • receivers are sized 147.3 x 88.5 x 25mm and weight 390g (aluminum chassis)
  • units are powered via 2-Pin Lemo, 7 - 28V DC, TX 7.7W, RX 8W (no battery option)

Teradek Bolt Pro 500, 1000 and 3000 (3rd Generation 2016)
  • SDI or Dual SDI/HDMI
  • transmitters come with built-in HDMI-SDI converter
  • incorporate the Teradek Grab video engine to allow direct output via USB 3.0
  • support 48kHz 24-bit PCM
  • transmission frequency within 5GHz range
  • working ranges of up to 152m (Pro 500), 304.5m (Pro 1000) and 913m (Pro 3000)
  • transmission delay <1ms
  • feat. Rapid Reconnect
  • support up to 4 receivers per transmitter
  • Pro 500 transmitters are sized 102.1 x 66 x 24mm and weight 217g (aluminum chassis)
  • powered via 2-Pin Lemo, 7 - 28V 7.3W DC (no battery option)
  • receivers are sized 146.5 x 88.9 x 25.2mm and weight 299g (aluminum chassis)
  • powered via 2-Pin Lemo, 7 - 28V 9W DC (no battery option)
  • Pro 1000 and 3000 transmitters are sized 101.5 x 66 x 24mm and weight 226g (aluminum chassis)
  • powered via 2-Pin Lemo, 7 - 28V 7.5W DC (no battery option)
  • receivers are sized 139 x 88.5 x 25mm and weight 376g (aluminum chassis)
  • powered via 2-Pin Lemo, 7 - 28V 8.5W DC (no battery option)

Teradek Bolt 4K series (4rd Generation 2019)
  • Models 750 and 1500
  • model name = max. transmission range (in ft.)
  • 4K capable...

As of late 2014 the still available 1st gen. Bolt HDMI [810] was the cheapest of the Teradek systems selling for approx. 1600$ a pair, followed by the Pro HDMI [830] for 2000$ and the Pro SDI [730] for 2500$. To pair up a transmitter with a receiver you need to connect both via USB to a computer running the Teradek Bolt Manager.
Transvideo Titan (~2002) sets consist of a Titan Tx and a Titan Rx. Reading between the lines of user comments available online they made up the earliest generation of wireless video transmission devices by means of usability, reliability and pricing.
  • external antennas
  • transmission frequency within 5.5GHz range (4 channels)
  • working range of 300m
  • powered by a 10 - 36V DC source (Tx: 1.9W, Rx: 1.8W max. consumption)
  • transmitters and receivers are sized 105 x 72 x 25mm and weight 200g each

Transvideo Titan HD (~2007)
  • SDI, HDMI and Composite
  • supports uncompressed signals up to 1080i60 (1080p29.97)
  • support for 2 audio channels
  • external antennas
  • transmission frequency of 5.5GHz (4 channels)
  • working range of 80m (tested by FDtimes)
  • transmission delay 2ms
  • powered by V-mount battery packs or a 10 - 36V DC source (Tx: 22W, Rx: 18W max. consumption)
  • transmitter is sized 254 x 121.5 x 107.9mm and weights 1100g
  • receiver is sized 305 x 150 x 102mm and weights 1450g

An additional type of transmitter with extended functionallity - the TitanHD Tx 3DView - has been released as well. It can transmit stereoscopic imagery (lossless like the original system) at the cost of analog audio (SDI-embedded still supported), higher weight (1630g), size and power consumption (32W).
Transvideo Titan HD2 (2016)
  • SDI
  • supports uncompressed signals in 720p/1080p/1080i/1080psf
  • supports SDI embedded audio and 2 seperate audio channels
  • external antennas
  • transmission frequency of 5.8GHz (4 channels)
  • working range of 200m
  • transmission delay <1ms
  • supports up to 3 receivers per transmitter
  • providing a Sony L Battery Socket
  • transmitter can be powered by a 5-30V DC source (6W max.)
  • receiver can be powered by a 9-30V DC source (6W max.)

Wicam Cypress HD (2015) is a full remote video control system, not only made of a video signal transmitter and receiver, but also incorporating a wireless 7" monitor.
  • SDI + HDMI
  • support for 4 SDI embedded audio channels (24bit, 48Khz)
  • transmission frequency range of 5.1 - 5.9GHz
  • working range of 500m with standard antennas, extendable to 1200m using Wicam's 16db Shield antenna
  • transmission delay 0ms
  • supports up to 6 receivers per transmitter
  • transmitters are powered by a Sony NP-F battery or 12-16V 500mA DC input (4pin LEMO)
  • transmitters are 120x70x25mm in size and weight 380g
  • receivers are powered by V-Lock batteries or 12-16V 500mA DC input (4pin LEMO)
  • receivers are 160x110x25mm in size and weight 540g
  • monitor offers a 1280 х 720 pixel resolution with stereo sound via 3.5mm phone jack
  • monitor is powered by V-Lock batteries or 12-16V 1000mA DC input (4pin LEMO)
  • monitors are 160x110x25mm in size and weight 1200g
  • shield antenna adds 1000g to the package
More Wireless HD Video Transmission Systems:
  • Boxx Atom/Meridian/Cobalt/Zenith []