Canon EF 300mm F2.8L USM Specifications

 

Compatibility:
analog/digital

Diagonal Angle of View:
8.2°

Maximum Magnification:
1:9.1

Minimum Aperture:
F32

Number of Aperture Blades:
8

Iris Pattern:
 

Minimum Distance:
300cm

Filter Thread:
48mm via filter holder

Maximum Diameter:
125mm

Length:
253mm

Weight:
2855g

Focus Type:
Ring-USM, Electronic-Manual (electronically accellerated manual focus, 3 steps of speed)

Dual Pixel CMOS AF:
supported

E-TTL II Distance Information:
yes

Lens Hood:
ET-120 (pull-on, screw-locked)

Produced:
1987

Tests:
 

 

Additional Information:
The lens features a focus limiter and comes with tripod collar.
Century Optics U.S.A. launched an S2000 cine mod of the Canon EF 2.8/300L USM. This modification includes a complete rehousing with cine optimized mechanics, adding a manual aperture ring, an extended focus throw (210°), precision scales on both sides of the lens, focus and iris gears and a support mount for Arri bridgeplates. Only the optics remain made by Canon. You can choose between 2 filter options - double R40.5 or 114mm on the front. The 40.5mm filters only fit APS-C format sensors and will cause vignetting on fullframe, Super 35 and APS-H. The lenses are further compatible with the TeleFX rear filter system (takes 70mm x 45mm filters). The mod comes with Century Universal Mount (exchangeable dedicated mount pieces). Century does not offer a mount dedicated to Canon EF, but as a Canon user you can apply the T mount #0TM-00CT-00 and then adapt to Canon EF. Each lens is delivered in a hardcase.
Technical Specifications for the Century Cine mods: Min. Focus: 305cm | Length: 265.8mm | Front Ring Diameter: 122.9mm | Max. Diameter: 149.86mm | Weight: 3700g


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