3rd Party Canon EF-M Mount Lenses For The Canon EOS Mirrorless Compact Camera System - Canon EOS Technoclopedia

Model
Amazon
Angle Of View1 Max. Magnif. Aperture:
Min. | Blades | Pattern2
Min. Dist. (cm) Filter (mm) Diameter (mm) Length (mm) Weight (g) Focus Type3 Focus Throw
(°)
Parfocal Zoom Type E-TTL II4 IR Capability5 Lens Hood Produced Comments Tests & Reviews
7artisans EF-M 7.5mm F2.8 Fisheye [75 MB]           180 (diag.)   22 11   12   63 55 278 MF only   -/- -/- -/-     built-in, flower 2017    
7artisans EF-M 12mm F2.8 Wide-Lens           102   16 7   20   63 62 295 MF only   -/- -/- -/-     built-in, flower 2017    
7artisans EF-M 25mm F1.8 HD.MC [25 MB]               16 12   18 46 51 32 143 MF only   -/- -/- -/-     thread, round 2017 silver and black editions  
7artisans EF-M 35mm F2.0 DJ-Optical           63   16 10   35 43 50 41 320 MF only   -/- -/- -/-     retractable 2017    
7artisans EF-M 35mm F1.2 DJ-Optical* [3512 MB]           46   16 9   35 43 57 38 150 MF only   -/- -/- -/-       2017 the lenses pictured by Shoten Kobo (2018) do not have the DJ-Optical labeling  
7artisans EF-M 50mm F1.8 HD.MC           32   16 12   50 52     168 MF only   -/- -/- -/-       2017    
7artisans EF-M 55mm F1.4 [5514 MB]               16 14   35 49 53 55 272 MF only   -/- -/- -/-       2017    
7artisans EF-M 60mm F2.8 Micro             1:1 16     26         MF only   -/- -/- -/-       ann. for 05.2019 introduced at CP+ 2019 by Shoten Kobo; max. magnification of 5:1 available using (dedicated/included/...*) extension ring(s)* ...*?  
  • 七工匠 - Shenzhen 7artisans Photoelectric Technology Co., Ltd.
Bower EF-M 16mm F2.0 ED AS UMC CS [SLY1620CM]     Print Bower 16mm F2.0 ED AS UMC CS Specifications   83.1   22 8   20 77 83 115.3 615 MF only | IF   -/- -/- -/-     bayonet, flower Samyang 2013 SLY16VDCM is the EOS-M cine edition  
Bower EF-M 300mm F6.3 Reflex ED UMC CS [SLY30063CM]     Print Bower 300mm F6.3 Reflex ED UMC CS Specifications   5.4   fixed -/- circular 90 R25.5 64.5 73.7 318 MF only   -/- -/- -/-     bayonet, round Samyang 2013    
Cen EF-M 7.5mm F2.8 Fish-Eye           180 (diag.)   22     12       248 MF only   -/- -/- -/-     built-in, flower   same lens as the 7artisans 2.8/7.5  
  • Cen 变色龙 (Chameleon) lenses are sold by 佳景贸易 Jia Jing Trading Co., Ltd.. Refer to Still Lenses C/EF > Other Brands for their regular DSLR lenses.
Digital King 12mm F7.4 Fisheye Lens for Canon EOS M     Print Digital King 12mm F7.4 Fisheye Lens for Canon EOS M Specifications     167 (diag.)   fixed -/- circular 30   65 58,5 220 MF only | IF   -/- -/- -/-     built-in, flower Toda Seiko 2014 delivered with a softcase  
  • The Digital King 7.4/12 first appeared in 2013 for NEX [#TFE-02] and FX [#TFX-02], officially produced by Toda Seiko. In the same year a first rebadge became available from Gloxy for NEX [#TFE02]. In 2014 Dörr came up with the first EOS M mount version and - widely unnoticed due to no official announcement nor listing of the lenses in their online cataloges - Rokinon started to offer rebadges with a little altered outer appearance for FX [#RMC12-FX], MFT [#RMC9-MFT], Nikon 1 [#RMC7.5-NI] and NEX [#RMC12-E].
    Although of identical parentage, the lenses have divergent specifications due to their different mount systems and crop factors of the cameras. This pertains effective focal length (7.5, 9 and 12mm) and aperture value (F8.0 and 7.4). Further the NEX and FX lenses are fixed focus lenses with a minimum focusing distance of 50cm, while the Dörr EF-M version has a minimum of 30cm.
    After all, Toda Seiko confirmed to already have the Digital King coming in EOS M as well (not yet available online). Rokinon still owes us the EOS M version.
Dörr 12mm F7.4 Fisheye Lens for Canon EOS M Mount     Print Dörr 12mm F7.4 Fisheye Lens for Canon EOS M Specifications   167 (diag.)   fixed -/- circular 30   65 58,5 220 MF only | IF   -/- -/- -/-     built-in, flower Toda Seiko 2014 delivered with a softcase  
HandeVision Ibelux EF-M 40mm F0.85 [HVIB4085CM]     Print HandeVision Ibelux 40mm F0.85 Specifications < 41.3* 1:20 22 10 rounded 75 67 74 128 1150 MF only | RF 250 -/- -/-       retractable, round ** 2014 *specs specify AOV for 25.1 x 16.7mm sensors; **joint venture between German IB/E Optics (engineering) and Shanghai Transvision/Kipon (production)  
  • HandeVision initially announced additional lenses to come, namely a wide-angle Ibegon to be in development (an Ibegon 12mm F2.8 was also shown behind glass at CP+ 2014 with the datasheet specifying EOS M mount as an upcoming variant), a high-speed telephoto APO mirror Ibecat (design done, mentioned to be planned at least for Sony's A7/A7R), a tilt-shift lens and a compact fixed focal length lens. Until now, however, no more lenses were released for Canon EF-M.
  • Refer to System Cameras > Mirrorless > RF 3rd Party Lenses for Kipon lenses available for Canon RF mount.
Hengyijia EF-M 25mm F1.8 HD.MC               16   circular 18 46 60 33 139 MF only   -/- -/- -/-     thread, round   silver and black editions  
Hengyijia EF-M 35mm F1.8 HD.MC               16     28 46 60 33 142 MF only   -/- -/- -/-     thread, round   silver and black editions  
KamLan EF-M 8mm F3.0 Fisheye           180 (diag.)   22     10       245 MF only   -/- -/- -/-     bayonet, flower, incl.      
KamLan EF-M 28mm F1.4           56 1:6.7 16 11   25 52 55 (56?) 65 (68?) 384 (344?) MF only 160 -/- -/- -/-     bayonet, round 2018    
KamLan EF-M 50mm F1.1           31   16 9 rounded 50 52 60 60 248 MF only | IF   -/- -/- -/-     bayonet, flower, incl. 2017    
  • Nice little puzzle here: What is the relationship between KamLan and SainSonic?
Kaxinda EF-M 25mm F0.95               22 12   17 55 65 100.6 540 MF only   -/- -/- -/-         identical to Meike's 0.95/25  
Kaxinda EF-M 35mm F1.7 MC HD               22 9   30 49 60.5 39 Mark II: 149 MF only   -/- -/- -/-     thread, round   black and silver editions available; identical to Meike's 1.7/35; at least 4 different versions of this lens have been produced until end of 2017, at least 3 of which for EOS M (II, III, IV):
Mark II's Kaxinda front ring imprint comes in red letters, Mark III is a 6/5 construction, Mark IV's Kaxinda imprint is white and the lens is a 7/6 construction with wider rear opening
 
Laowa EF-M 9mm F2.8 Zero-D           113 1:7.5   7   12 49 53 60 215 MF only   -/- -/- -/-     flower 2018    
Lensbaby EF-M 28mm F3.5 "Trio 28" [LBT28KCM]                   20 46 69.9 69.9 139 MF only   -/- -/- -/-         combines Twist, Velvet and Sweet effects in one lens turret  
Meike EF-M 6.5mm F2.0 4K 190°           190 (diag.)   22     10 none 61 51.5 300 MF only   -/- -/- -/-     none 2017 there are only 4 iris postions here: F2.0, 3.5, 8.0 and F22  
Meike EF-M 8mm F3.5 Fisheye CS           180 (diag.)   22       none 77 109 569 MF only   -/- -/- -/-     EW-77 (bayon., flwr., incl.) Samyang 2017    
Meike EF-M 12mm F2.8 MC           88.5   22     10 72 78 65.8 380 MF only   -/- -/- -/-     EW-77 (bayon., flwr., incl.) Samyang 2017    
Meike EF-M 25mm F2.0 MC           49.7   22     25 55       MF only               2018    
Meike EF-M 25mm F0.95 MC [MK-EM-25-0.95]       59 1:7.4 22     17 55 64 101 540 MF only   -/- -/- -/-     none 2016 also sold as Kaxinda 0.95/25  
Meike EF-M 28mm F2.8 MC [MK-EM-28-2.8]       50.3 1:9.1 22   rounded 25 (?) 49 60.4 29 102 MF only   -/- -/- -/-     none 2016 also sold as Voking  
Meike EF-M 35mm F1.7 MC [MK-EM-35-1.7]       44.2 1:8.8 22   rounded 30 49 60.5 41 176 MF only   -/- -/- -/-     none 2016 also sold as Kaxinda and as Voking  
Meike EF-M 50mm F2.0 MC [MK-EM-50-2.0]       30.2 1:12.5 22   rounded 65 49 60.5 41 188 MF only   -/- -/- -/-     none 2016 also sold as Voking  
  • Still got to figure out, who is the OEM of the 6.5mm and ≥25mm lenses (at least the 6.5mm looks like it could be a Samyang, too). Neewer is selling the 4 "longer" lenses under their own brand for Sony NEX only as well as Voking.
  • Refer to System Cameras > Mirrorless > RF 3rd Party Lenses for Meike lenses available for Canon RF mount.
Monochrom EF-M 65mm F5-180* Subjektiv                   12** 52       MF only   -/- -/- -/-     none   *delivered with pinhole F180, zone plate F32, acrylic lens F5 and achromatic glass lens F5 plus aperture tube F8; optional zone and photon sieve inserts available  
Rokinon EF-M 8mm F2.8 UMC Fisheye II [RK8MBK28-M]   Print Rokinon 8mm F2.8 UMC Fisheye II Specifications   167 (diag.)   22 6   30 -/- 60 64.4 260 MF only | IF   -/- -/- -/-     fixed, flower Samyang 2014 further available as EF-M V-DSLR 8mm T3.1 UMC [CV8MBK31-M]  
Rokinon EF-M 10mm F2.8 ED AS NCS CS [10M-M]   Print Rokinon 10mm F2.8 ED AS NCS CS Specifications   109.5   22 6 rounded 24 -/- 87 132 620 MF only | IF   -/- -/- -/-     fixed, flower Samyang 2014 further available as EF-M V-DSLR 10mm T3.1 NCS [CV10M-C]  
Rokinon EF-M 12mm F2.0 ED AS NCS CS [RK12M-M]     Print Rokinon 12mm F2.0 ED AS NCS CS Specifications   98.9   22 6   20 67 72.5 59 245 MF only | IF 130 -/- -/- -/-     bayonet, flower Samyang 2014 further available as EF-M V-DSLR 12mm T2.2 NCS CS [CV12M-M] Popular Photography 01/2015
Rokinon EF-M 16mm F2.0 ED AS UMC CS [16M-M]   Print Rokinon 16mm F2.0 ED AS UMC CS Specifications   83.1   22 8   20 77 83 115.3 615 MF only | IF   -/- -/- -/-     bayonet, flower Samyang 2013    
Rokinon EF-M 21mm F1.4 ED AS UMC CS [RN21M-M]     Print Rokinon 21mm F1.4 ED AS UMC CS Specifications   66.4   22 9 rounded 28 58 64.3 67.5 275 MF only | IF 120 -/- -/- -/-     bayonet, flower Samyang 2015 further available as EF-M V-DSLR 21mm T1.5 ED AS UMC CS [CV21M-M] Popular Photography 05/2016
Rokinon EF-M 35mm F1.2 ED AS UMC CS [RK3512-M]           42.1   16 9 rounded 38 62 67.5 74.1 420 MF only   -/- -/- -/-     bayonet, round Samyang 2017    
Rokinon EF-M 50mm F1.2 AS UMC CS [RK... + RN50M-M]     Print Rokinon 50mm F1.2 AS UMC CS Specifications   30   16 9 rounded 50 62 67.5 74.1 385 MF only | IF 160 -/- -/- -/-     bayonet, round Samyang 2015 further available as EF-M V-DSLR 50mm F1.2 AS UMC CS [CV50M-M] Popular Photography 03/2016
Rokinon EF-M 85mm F1.8 ED UMC CS           18 1:5.9 22 9   65 62 67.5 80.6 344 MF only   -/- -/- -/-     bayonet, round Samyang 2018    
Rokinon EF-M 300mm F6.3 Reflex ED UMC CS [300M-M]   Print Rokinon 300mm F6.3 Reflex UMC CS CA Specifications   5.4   fixed -/- circular 90 R25.5 64.5 73.7 318 MF only   -/- -/- -/-     bayonet, round Samyang 2013 silver [#...-S] and black editions [#...-BK]  
Samyang EF-M 8mm F2.8 UMC Fisheye II [SY8MBK28-M]   Print Samyang 8mm F2.8 UMC Fisheye II Specifications   167 (diag.)   22 6   30 -/- 60 64.4 260 MF only | IF   -/- -/- -/-     fixed, flower 2014 further available as EF-M V-DSLR 8mm T3.1 UMC; also sold by Rokinon and Walimex  
Samyang EF-M 10mm F2.8 ED AS NCS CS [SY10M-M]   Print Samyang 10mm F2.8 ED AS NCS CS Specifications     109.5   22 6 rounded 24 -/- 87 132 620 MF only | IF   -/- -/- -/-     fixed, flower 2014 further available as EF-M V-DSLR 10mm T3.1 ED AS NCS; also sold by Rokinon and Walimex  
Samyang EF-M 12mm F2.0 ED AS NCS CS   Print Samyang 12mm F2.0 ED AS NCS CS Specifications     98.9   22 6   20 67 72.5 59 245 MF only | IF 130 -/- -/- -/-     bayonet, flower 2014 further available as EF-M V-DSLR 12mm T2.2 NCS; also sold by Rokinon and Walimex  
Samyang EF-M 16mm F2.0 ED AS UMC CS [SY16M-M]   Print Samyang 16mm F2.0 ED AS UMC CS Specifications   83.1   22 8   20 77 83 115.3 615 MF only | IF   -/- -/- -/-     bayonet, flower 2013 further available as EF-M V-DSLR 16mm T2.2 ED AS NCS; also sold by Bower, Rokinon and Walimex  
Samyang EF-M 21mm F1.4 ED AS UMC CS     Print Samyang 21mm F1.4 ED AS UMC CS Specifications     66.4   22 9 rounded 28 58 64.3 67.5 275 MF only | IF   -/- -/- -/-     bayonet, flower 2015 further announced as EF-M V-DSLR 21mm T1.5; also sold by Rokinon and Walimex  
Samyang EF-M 35mm F1.2 ED AS UMC CS           42.1   16 9 rounded 38 62 67.5 74.1 420 MF only   -/- -/- -/-     bayonet, round 2016 further announced as EF-M V-DSLR 35mm T1.3; also sold by Rokinon  
Samyang EF-M 50mm F1.2 AS UMC CS     Print Samyang 50mm F1.2 AS UMC CS Specifications     30   16 9 rounded 50 62 67.5 74.1 385 MF only | IF   -/- -/- -/-     bayonet, round 2015 further announced as EF-M V-DSLR 50mm T1.3; also sold by Rokinon and Walimex  
Samyang EF-M 85mm F1.8 ED UMC CS           18 1:5.9 22 9   65 62 67.5 80.6 344 MF only   -/- -/- -/-     bayonet, round 2018 also sold by Rokinon  
Samyang EF-M 300mm F6.3 Reflex ED UMC CS [SY300M-M]   Print Samyang 300mm F6.3 Reflex UMC CS CA Specifications   5.4   fixed -/- circular 90 R25.5 64.5 73.7 318 MF only   -/- -/- -/-     bayonet, round 2013 black edition [#...-BK]; also sold by Bower, Rokinon and Walimex  
Tamron AF 18-200mm F3.5-6.3 Di-III VC [B011]   Print Tamron AF 18-200mm F3.5-6.3 Di-III VC [B011] Specifications   1:3.7 22 - 40 7   50 62 68 97 460 STM | IF     rotary       bayonet, flower 2014 ZoomLock; black and silver editions available; TIPA CSC Entry Level Lens Award 2015  
Tycoon EF-M 250mm F5.6 'RF Tycoon-X 250' Mirror               fixed     300             -/- -/- -/-       YXGX presented at Photokina 2014 and according to their booth's staff to become available for EF-M  
Voking EF-M 28mm F2.8 MC [VK-28mm-F/2.8]           50.3 1:9.1 22   rounded 25 49 60.4 29 102 MF only   -/- -/- -/-     none 2018 (?) also sold by Meike  
Voking EF-M 35mm F1.7 MC [VK-35mm-F/1.7]           44.2 1:8.8 22   rounded 30 49 60.5 41 176 MF only   -/- -/- -/-     none 2018 (?) also sold by Meike and Kaxinda  
Voking EF-M 50mm F2.0 MC [VK-50mm-F/2.0]           30.2 1:12.5 22   rounded 65 49 60.5 41 188 MF only   -/- -/- -/-     none 2018 (?) also sold by Meike  
Walimex Pro 8mm F3.5 Fisheye II [20129]   Print Walimex Pro 8mm F3.5 Fisheye II Specifications   167 (diag.)   22     30 -/- 75 103.2 453 MF only   -/- -/- -/-     bayonet, flower Samyang further available as EF-M V-DSLR 8mm T3.8 [20133]  
Walimex Pro 8mm F2.8 UMC Fisheye II [*]     Print Walimex Pro 8mm F2.8 UMC Fisheye II Specifications   167 (diag.)   22 6   30 -/- 60 64.4 260 MF only | IF   -/- -/- -/-     fixed, flower Samyang 2014 *black [19548] and silver [19920] editions available; further available as EF-M V-DSLR 8mm T3.1 [20144]  
Walimex Pro 10mm F2.8 [19935]   Print Walimex Pro 10mm F2.8 Specifications   109.5   22 6 rounded 24 -/- 87 132 620 MF only | IF   -/- -/- -/-     fixed, flower Samyang 2014 further available as EF-M V-DSLR 10mm T3.1 [20188]  
Walimex Pro 12mm F2.8 ED AS UMC* CA Fish-Eye [20596]     Print Walimex Pro 12mm F2.8 ED AS (NCS) UMC* Fish-Eye Specifications     118 (diag.)   22 6   20 -/- 77.3 72.7 515 MF only | IF   -/- -/- -/-     bayonet, flower Samyang *NCS according to announcement, UMC according to Samyang product pictures, "Highly effective nanocrystal anti-reflection (NCS) coating applied together with
UMC coatings improve light transmission and reduce ghosting." according to B&H Rokinon product description; EF-M VDSLR [20606]
 
Walimex Pro 12mm F2.0 ED AS NCS CS [*]   Print Walimex Pro 12mm F2.0 ED AS NCS CS Specifications   98.9   22 6   20 67 72.5 59 245 MF only | IF 130 -/- -/- -/-     bayonet, flower Samyang 2014 *black [20157] and silver [20191] editions available; further available as EF-M V-DSLR 12mm T2.2 [20162]  
Walimex Pro 14mm F2.8 ED AS IF UMC CS [20113]   Print Walimex Pro 14mm F2.8 ED AS IF UMC CS Specifications   93.9   22     28 -/- 87 122 570 MF only | IF   -/- -/- -/-       Samyang further available as EF-M V-DSLR 14mm T3.1 [20118]  
Walimex Pro 16mm F2.0 ED AS UMC CS [19716]   Print Walimex Pro 16mm F2.0 ED AS UMC CS Specifications   83.1   22 8   20 77 83 115.3 615 MF only | IF   -/- -/- -/-     bayonet, flower Samyang 2013 further available as EF-M V-DSLR 16mm T2.2 ED AS NCS [19788]  
Walimex Pro 21mm F1.4 CSC [21136]     Print Walimex Pro 21mm F1.4 CSC Specifications     66.4   22 9 rounded 28 58 64.3 67.5 275 MF only | IF   -/- -/- -/-     bayonet, flower Samyang 2015 further available as EF-M V-DSLR 21mm T1.5 [21140]  
Walimex Pro 24mm F1.4 ED AS IF UMC [20097]   Print Walimex Pro 14mm F2.8 ED AS IF UMC Specifications   61.8   22     25 77 83 123.4 590 MF only | IF   -/- -/- -/-       Samyang 2014 further available as EF-M V-DSLR 24mm T1.5 [20102]  
Walimex Pro 24mm F3.5 T-S ED AS UMC [20137]   Print Walimex Pro 24mm F3.5 T-S ED AS UMC Specifications   59.9   22     20 82 86 136 737 MF only   -/- -/- -/-       Samyang    
Walimex Pro 35mm F1.4 AS UMC [20105]   Print Walimex Pro 35mm F1.4 AS UMC Specifications   43.2   22     30 77 83 137.4 735 MF only   -/- -/- -/-       Samyang further available as EF-M V-DSLR 35mm T1.5 [20110]  
Walimex Pro 50mm F1.4 [20395]     Print Walimex Pro 50mm F1.4 Specifications   29   22     45 77 81.6 100.6 600 MF only   -/- -/- -/-       Samyang 2015 further available as EF-M V-DSLR 50mm T1.5 [20405]  
Walimex Pro 50mm F1.2 AS UMC CS [21144]     Print Rokinon 50mm F1.2 AS UMC CS Specifications     30   16 9 rounded 50 62 67.5 74.1 385 MF only | IF   -/- -/- -/-     bayonet, round Samyang 2015 further coming as EF-M V-DSLR 50mm T1.5  
Walimex Pro 85mm F1.4 [20121]   Print Walimex Pro 85mm F1.4 Specifications   19.1   22     100 72 78 100.6 570 MF only   -/- -/- -/-       Samyang further available as EF-M V-DSLR 85mm T1.5 [20126]  
Walimex Pro 100mm F2.8 ED UMC Macro [20856]     Print Walimex Pro 100mm F2.8 ED UMC Macro Specifications     15.4 1:1 32 9 rounded 31 67 81.6 149 730 MF only   -/- -/- -/-     bayonet, round Samyang 2015 further available as EF-M V-DSLR 100mm T3.1 ED UMC Macro [20857]  
Walimex Pro 135mm F2.0 [20737]     Print Walimex Pro 135mm F2.0 Specifications   11.7   22     80 77 82 148 845 MF only   -/- -/- -/-       Samyang 2015 further available as EF-M V-DSLR 50mm T1.5 [20747]  
Walimex Pro 300mm F6.3 Reflex ED UMC CS [*]   Print Walimex Pro 300mm F6.3 Reflex ED UMC CS Specifications   5.4   fixed -/- circular 90 R25.5 64.5 73.7 318 MF only   -/- -/- -/-     bayonet, round Samyang 2013 *black [19722] and silver [19723] editions available  
Yasuhara EF-M F11.0 Nanoha x5             5:1 - 4:1 32 5     none 61 84 310 MF only             none Yasuhara 2012 lens is shipped with an illuminating module installed to its front end containing 3 LEDs to provide continuous light, powered via USB - that unit is available as spare part;
working distance is 11-19mm - no infinity focus available; also available seems to be some kind of objekt holder, that can be plugged to the front of the lens
 
Zhongyi EF-M 35mm F0.95 Speedmaster (Mark II)           43.5   16* 9   35 55 63 60 460 MF only   -/- -/- -/-       ZY Optics 2016 *clickless; silver and black editions; Mark I was not available for Canon EF-M  
Zonlai EF-M 22mm F1.8               16     15 46   39 235 MF only   -/- -/- -/-       ~2017 (?)    
  • 中徕镜头 - Zonlai Optics Electronics

Macro Extension Tubes
Amazon
Diameter (mm) Length (mm) Weight (g) Produced Comments Tests & Reviews
B.I.G. Makroschnecke (27 - 55mm)         63   130 2015    
  • available for EF-M and other camera mounts, takes M42 lenses (M39 adapter included); also available as set with B.I.G. 50mm F4.5 Helioret (M39, F4.5-16, Ø45xL32mm, 90g); max. magnification with the Helioret is 1:1.5
Dörr Extension Tube 10mm + 16mm + 21mm               allows a max. magnification of 1.5:1  
Fotasy Extension Tube DG 10mm + 16mm EM                  
Fotga Extension Tube DG 10mm + 16mm EM1                  
Fotodiox Pro 10mm + 16mm for EF-M                  
Meike Extension Tube Set 10mm + 16mm [MK-C-AF3]             AF3A with metal bayonet, AF3B with plastic bayonet  
Opteka Extension Tube 10mm + 16mm + 21mm                  
Polaroid Extension Tube Set 10mm + 16mm [PL-EXTCM]                
Viltrox Extension Tube DG-EOS M 10mm + 16mm     62   26 + 31 ~2016    

Mount Adapters
Amazon
AF-Check1 Infinity Focus F-Lock2 Material Comments/Limitations Tests & Reviews
Fotodiox Pro Canon FD [FD - EOS M]         no yes yes aluminum (black+blue) provides a manual aperture control ring; feat. tripod mount; also compatible with nFD and FL lenses  
Fotodiox Pro Contarex [Contarex - EOS M D-Click]         no yes -- (black+silver) provides a manual declicked aperture control ring  
Fotodiox Pro Contax G [Contax G - EOS M]         no yes -- brass+steel (black+silver)    
Fotodiox Pro Exakta [Exakta - EOS M]         no yes -- aluminum (black+silver) feat. tripod mount  
Fotodiox Pro Fujica X-Mount [FX(35) - EOS M]         no yes -- aluminum (black+silver) feat. tripod mount  
Fotodiox Pro Hasselblad V [HB - EOS M]         no yes -- aluminum (black+silver) feat. tripod mount  
Fotodiox Pro Leica M [LM - EOS M]         no yes -- aluminum (black+silver)    
Fotodiox Pro Mamiya ZE [ZE - EOS M]         no yes -- aluminum (black+silver+blue) provides a manual aperture control ring  
Fotodiox Pro Miranda [Miranda - EOS M]         no yes -- aluminum (black+silver) feat. tripod mount  
Fotodiox Pro Nikon G [Nik(G) - EOS M]         no yes -- aluminum (black+silver+blue) provides a manual aperture control ring  
Fotodiox Pro Olympus OM [OM - EOS M]         no yes -- (black+silver) feat. tripod mount  
Fotodiox Pro Yashica AF [YA(AF) - EOS M]         no yes -- aluminum (black+silver+blue) provides a manual aperture control ring  
K&F Concept Canon FD [FD-EOS M]         no yes -- (black) feat. tripod mount  
K&F Concept Nikon F [Nikon-EOS M]         no yes -- alu+brass (black+silver)    
K&F Concept Pentax K [PK-EOS M]         no yes -- alu+brass (black+silver)    
Kernel Canon FD [FD-EOS.M]         no yes -- (black)    
Kipon Arri S [Arri/s-EOS M]         no yes -- (black+silver) Arri S are 16mm lenses  
Kipon C-Mount [C-EOS M]         no yes -- brass (black)    
Kipon Canon FD [FD-EOS M]         no yes yes (black+silver)    
Kipon Contarex [CRX-EOS M]         no yes -- (black+silver) provides a manual aperture control ring  
Kipon Contax G [C/G-EOS M]         no yes -- (black+silver) provides a manual focus control ring  
Kipon Contax N [CN1-EOS M]         no yes -- (black+silver) built-in iris  
Kipon Contax Rangefinder [CRF-EOS M]         no yes -- (black)    
Kipon Contax/Yashica [C/Y-EOS M]         no yes -- (black)    
Kipon Exakta [EXA-EOS M]         no yes -- (black+silver)    
Kipon FT [4/3-EOS M]         no yes -- (black+silver)    
Kipon Hasselblad V [HBRING]         no yes -- (black)    
Kipon Hasselblad Xpan [XPAN-EOS M]         no yes -- (black)    
Kipon Konica AR [K/AR-EOS M]         no yes -- (black)    
Kipon Leica M [L/M-EOS M]         no yes -- (black)    
Kipon Leica M with 5mm Macro Helicoid [L/M-EOS M/M]         no yes -- (black) focus to infinity is only available in normal mode  
Kipon Leica M39 [L39-EOS M]         no yes -- (black)    
Kipon Leica R [L/R-EOS M]         no yes -- (black)    
Kipon Leica Visoflex [VISO-EOS M]         no yes -- (black)    
Kipon M42 [M42-EOS M]         no yes yes (black)    
Kipon MFT [PEN-EOS M]         no yes -- (black)    
Kipon Minolta MD [MD-EOS M]         no yes -- (black)    
Kipon Minolta AF [MAF-EOS M]         no yes -- (black) seems like there are two versions - one with and one without manual aperture control ring  
Kipon Nikon F [NIK-EOS M]         no yes -- (black)    
Kipon Nikon G [N/G-EOS M]         no yes -- (black) provides a manual aperture control ring; also compatible with N/F mount lenses  
Kipon Olympus M [OM-EOS M]         no yes -- (black)    
Kipon Pentax K [PK/DA-EOS M]         no yes -- (black) provides a manual aperture control ring  
Kipon Pentax 110 [P110-EOS M]         no yes -- (black)    
Kipon Praktika [PB-EOS M]         no yes -- (black)    
Kipon Rollei [QBM-EOS M]         no yes -- (black)    
Kipon T2 [T-EOS M]         no yes -- (black)    
Kipon Tilt Contax/Yashica [Tilt C/Y-EOS M]         no yes -- (black+silver) tilt = 12°, 360° rotation  
Kipon Tilt Pentax K [Tilt PK-EOS M]         no yes --      
Kipon Shift Canon FD [Shift FD-EOS M]               (black+silver) shift = 15mm, 360° rotation  
Kipon Shift Contax/Yashica [Shift C/Y-EOS M]         no yes -- (black) shift = 10mm, 360° rotation  
Kipon Shift Minolta MD [Shift MD-EOS M]         no yes -- (black) shift = 10mm, 360° rotation  
Kipon Shift Pentax K [Shift PK-EOS M]         no yes -- (black) shift = 10mm, 360° rotation  
Kipon Tilt-Shift Leica R [T&S L/R-EOS M]         no yes -- (black+silver) tilt = 12°, shift = 15mm, 360° rotation; there also exist tilt only [Tilt L/R-EOS M] and shift only (10mm) adapters [Shift L/R-EOS M]  
Kipon Tilt-Shift M42 [T&S M42-EOS M]         no yes (?) (black+silver) tilt = 12°, shift = 15mm, 360° rotation; there also exist tilt only [Tilt M42-EOS M] and shift only adapters  
Kipon Tilt-Shift Nikon F [T&S NIK-EOS M]         no yes -- (black+silver) tilt = 12°, shift = 15mm, 360° rotation; there also exist tilt only [Tilt NIK-EOS M] and shift only adapters  
Kipon Tilt-Shift Nikon G [T&S N/G-EOS M]         no yes -- (black+silver) tilt = 12°, shift = 15mm, 360° rotation  
Kipon Tilt-Shift Olympus M [T&S OM-EOS M]         no yes -- (black+silver) tilt = 12°, shift = 15mm, 360° rotation; there also exist tilt only [Tilt OM-EOS M] and shift only (10mm) adapters [Shift OM-EOS M]  
Kiwi Canon FD [LMA-FD_C/M AP212]         no yes -- aluminum (black)    
Kiwi Contax G [Contax G-C/M]         no yes -- aluminum (black+silver)    
Kiwi Leica M [LMA-L(M)_C/M AP211]         no yes -- alu+brass (black+silver)    
Kiwi Leica M39 [LMA-M39_C/M AP212]         no yes -- aluminum (black)    
Kiwi M42 [LMA-M42_C/M AP211]         no yes (?) aluminum (black)    
Kiwi Nikon F [LMA-NK_C/M AP211]         no yes -- alu+brass (black+silver)    
Kiwi Nikon G [LMA-NK(G)_C/M AP211]         no yes -- alu+brass (black+silver)    
Kiwi Pentax K [LMA-PK_C/M AP211]         no yes -- aluminum (black)    
Kiwi Pentax K/A [LMA-PK(A)_C/M AP211]         no yes -- alu+brass (black+silver)    
Kiwi Sony/Minolta [LMA-SM(A)_C/M AP211]         no yes -- aluminum (black)    
Kiwi T2 [LMA-TM_C/M AP211]         no yes -- aluminum (black)    

General Notes:
1.) The Canon EOS M features a menu selection to "shoot without lens". This will allow shooting with any lens mechanically adapted, using the controls provided by the lens itself. Sounds like even mounting old Sigma EF lenses, that will usually give ERR99 with DSLRs, will work (ofc. still limited to fully open aperture, since not featuring manual control rings, and most likely in manual focus mode only).
2.) To mount your existing EF and EF-S lenses to the EOS M you'll need the Canon Mount Adapter EF-EOS M.
 
Online Resources:
 
Cen (Jia Jiang Trading) • JingDongJoyBuy
Digital King • Toda Seiko (via archive.org)
Laowa (by Venus Optics)
Samyang Global • see Samyang for more links
Tamron Global • see Tamron Lenses for more
Tycoon @YiXiong Optics Apparatus (archive.org)
Tycoon @YiXiong Optician (TM filing AU)