EF-M bayonet

from Wikipedia, the free encyclopedia
EF bayonet (left) and EF-M bayonet (right)
Sigma lens with EF bayonet (left) and Canon lens with EF-M bayonet (right)

The EF-M bayonet refers to the lens bayonet connection that Canon uses to connect lenses and mirrorless system cameras with APS-C image format. It was introduced in October 2012 with the EOS M camera .

Due to the omission of the mirror box and the reduction to the APS-C format, the lens moves closer to the sensor than a single-lens reflex camera. It has a flange focal length of 18 mm, compared to 44 mm for the classic EF bayonet . This enables the construction of flatter camera bodies and a more compact lens construction. The diameter of the EF-M bayonet is about 7.5 mm smaller than that of the EF bayonet.

The electronic interfaces of the EF and EF-M bayonets connected to the bayonet are compatible. It is therefore possible to use EF and EF-S lenses on EF-M cameras using an adapter. The automatic functions of a lens, including any image stabilization, are supported. Conversely, EF-M lenses cannot be used on conventional Canon SLR cameras with EF or EF-S bayonets because they are too short.

It is incompatible with the Canon RF bayonet introduced in 2018 , as the flange focal length of the RF bayonet is 2 mm longer and the RF bayonet has a 7.5 mm larger diameter.

Adapter for third-party lens connections

A lens adapter from the EF / EF-S to the EF-M bayonet

The reduced back focus allows the use of numerous third-party lenses that are designed for a longer back focus. So from alternative providers z. B. Adapters for the universal M42 screw thread , Leica M , Leica R , Minolta SR , Pentax K , Nikon F , Canon FD and many other systems available. Since the camera can usually not control the lenses, the lenses must be set manually (aperture, focus). Only a timing automatic (without open aperture measurement ) is often possible.

Tilt-and-shift adapters are available for some systems (e.g. Nikon F ). Since the adjustment mechanism of the adapter requires space, 35mm single-lens reflex lenses are more suitable. The lenses of many rangefinder cameras offer less leeway with their slightly shorter flange focal length. A 24mm tilt-and-shift lens with an EF-M connector is available from Samyang .

Canon cameras with EF-M bayonet

model resolution Viewfinder Launch Specialty
Canon EOS M 18 megapixels No 2012-10
Canon EOS M2 18 megapixels 2013-12 was only available in the Asian market
Canon EOS M3 24 megapixels optional, to attach 2015-04
Canon EOS M5 24.2 megapixels Yes 2016-11
Canon EOS M6 24.2 megapixels optional, to attach 2017-04
Canon EOS M6 Mark II 32.5 megapixels optional, to attach 2019-09
Canon EOS M10 18 megapixels No 2015-11
Canon EOS M50 24.2 megapixels Yes 2018-03
Canon EOS M100 24 megapixels No 2017-10
Canon EOS M200 24 megapixels No 2019-10

Canon lenses with EF-M bayonet

lens 35mm
focal length * 		Max.
Light intensity 		Introduced macro USM Stepper
motor 		IS Filter
diameter 		Lens
diameter 		Lens
length 		Weight source
11-22 mm 18-35 mm f / 4-5.6 2013 No No Yes Yes 55 mm 60.9 mm 58.2 mm 220 g
15-45 mm 24-72 mm f / 3.5-6.3 2015 No No Yes Yes 49 mm 60.9 mm 44.5 mm 130 g
18-55 mm 29-88 mm f / 3.5-5.6 2012 No No Yes Yes 52 mm 60.9 mm 61 mm 210 g
18-150 mm 29-240 mm f / 3.5-6.3 2016 No No Yes Yes 55 mm 60.9 mm 86.5 mm 300 g
22 mm 35 mm f / 2 2012 No No Yes No 43 mm 60.9 mm 23.7 mm 105 g
28 mm Macro 45 mm f / 3.5 2016 Yes No Yes Yes 43 mm 60.9 mm 45.5 mm 130 g
32 mm 51 mm f / 1.4 2018 No No Yes No 43 mm 60.9 mm 56.5 mm 235 g
55-200 mm 88-320 mm f / 4.5-6.3 2014 No No Yes Yes 52 mm 60.9 mm 86.5 mm 260 g

* Comparable focal length in 35mm format (× 1.6 format factor )

Third-party lenses with EF-M bayonet

Manufacturer lens 35mm
focal length * 		Max.
Light intensity 		Autofocus source
7artisans 7.5mm fisheye 12 mm f / 2.8 No
7artisans 35mm f / 2 56 mm f / 2 No
Dehydrator 12 mm, fisheye 19 mm f / 7.4 No
HandeVision 40 mm, Ibelux 64 mm f / 0.85 No
Samyang 8 mm, fisheye II 13 mm f / 2.8 No
Samyang 8 mm, fisheye II 13 mm f / 3.5 No
Samyang 10 mm 16 mm f / 2.8 No
Samyang 12 mm 19 mm f / 2.0 No
Samyang 12 mm, fisheye 19 mm f / 2.8 No
Samyang 16 mm 26 mm f / 2.0 No
Samyang 20 mm 32 mm f / 1.8 No
Samyang 21 mm 34 mm f / 1.4 No
Samyang 24 mm, tilt-and-shift 38 mm f / 3.5 No
Samyang 35 mm 56 mm f / 1.2 No
Samyang 35 mm 56 mm f / 1.4 No
Samyang 50 mm 80 mm f / 1.2 No
Samyang 85 mm 136 mm f / 1.8 No
Samyang 100 mm, Macro 160 mm f / 2.8 No
Samyang 135 mm 216 mm f / 2.0 No
Samyang 300 mm, mirror lens 480 mm f / 6.3 No
Sigma 16 mm 26 mm f1.4 Yes
Sigma 30mm 48 mm f / 1.4 Yes
Sigma 56 mm 90 mm f / 1.4 Yes
Tamron 18-200 mm, Di III VC 29-320 mm f / 3.5-6.3 Yes
Yasuhara Nanoha Macro × 5 / × 4 f / 11-32 No
Venus Optics 4 mm, fisheye 6.4 mm f / 2.8 No
Venus Optics 9 mm 14 mm f / 2.8 No
Venus Optics 65 mm, 2 × Macro 104 mm f / 2.8 No

* Comparable focal length in 35mm format (× 1.6 format factor )

Adaptation of EF and EF-S lenses and their limitations

In principle, it is possible to connect all EF and EF-S lenses to a camera with an EF-M bayonet using an adapter from Canon. The full range of functions should be retained (e.g. iris control and autofocus still possible). On the Canon UK homepage, however, it is pointed out that the autofocus does not work with several older lenses on the M3 and M10. It is not mentioned whether this also applies to older M models.

Web links

Commons : Canon lenses with EF-M bayonet  - collection of images, videos and audio files

Individual evidence

  1. ^ Wadim Herdt: Canon EOS R - "R" like mirrorless . In: Hans Stübinger; Dirk Waasen (Ed.): Color Photo . tape 11/2018 , November 2018, ISSN  0343-3102 , p. 6 .
  2. ↑ Lens adapter Nikon F lens to Canon EF-M bayonet. Retrieved October 4, 2015 .
  3. ↑ SAMYANG TILT / SHIFT LENS 24mm F3.5 ED AS UMC. (No longer available online.) Archived from the original on March 4, 2016 ; accessed on October 24, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.syopt.com
  4. ↑ Canon EF-M 11-22mm f / 4-5.6 IS STM. (No longer available online.) Archived from the original on October 5, 2015 ; accessed on October 9, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.canon.de
  5. ↑ http://www.canon.de/for_home/product_finder/cameras/ef_lenses/ef-m/ef_m_15-45mm_f_3.5_6.3_is_stm/. (No longer available online.) Archived from the original on October 19, 2015 ; accessed on October 13, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.canon.de
  6. ↑ Canon EF-M 18-55mm f / 3.5-5.6 IS STM. (No longer available online.) Archived from the original on October 5, 2015 ; accessed on October 9, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.canon.de
  7. ↑ Small housing, great performance - the new flagship among the mirrorless system cameras from Canon: the EOS M5. (No longer available online.) Canon on September 15, 2016, archived from the original on September 16, 2016 ; accessed on September 15, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.canon.de
  8. ↑ Canon EF-M 22mm f / 2 STM. Retrieved October 9, 2015 .
  9. ↑ Canon introduces the world's first AF lens with a macro light - the EF-M 28mm 1: 3.5 Macro IS STM. (No longer available online.) Archived from the original on May 13, 2016 ; accessed on May 11, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.canon.de
  10. ↑ CANON EF-M 32MM F / 1.4 STM. In: canon.de. Canon, September 5, 2018, accessed September 5, 2018 .
  11. ↑ Canon EF-M 55-200mm f / 4.5-6.3 IS STM. (No longer available online.) Archived from the original on September 23, 2015 ; accessed on October 9, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.canon.de
  12. ↑ 7artisans Photoelectric 7.5mm f / 2.8 Fisheye Lens for Canon EF-M. Retrieved September 23, 2018 .
  13. ↑ 35mm f / 2 for Sony E / Fujifilm X / Canon EOS M mounts. Petapixel, accessed September 23, 2018 .
  14. ↑ Fisheye lens for Canon EOS M. Accessed July 10, 2018 .
  15. ↑ HandeVision IBELUX 40 mm / 0.85. (No longer available online.) Archived from the original on October 8, 2015 ; Retrieved October 4, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / handevision.de
  16. ↑ Samyang 8mm F2.8 UMC Fish-eye II. Samyang Optics, accessed on February 21, 2020 (English).
  17. ↑ Samyang 8mm F3.5 UMC Fish-Eye CS II. Samyang Optics, accessed on February 21, 2020 (English).
  18. ↑ Samyang 10mm F2.8 ED AS NCS CS. Samyang Optics, accessed February 21, 2020 .
  19. ↑ Dustin Abbott: Rokinon 12mm f / 2 NCS Review. In: http://dustinabbott.net/ . October 21, 2014, accessed April 4, 2016 .
  20. ↑ Samyang 12mm F2.8 ED AS NCS FISH-EYE. Samyang Optics, accessed February 21, 2020 .
  21. ↑ Samyang 16mm F2.0 ED AS UMC CS. Samyang Optics, accessed February 21, 2020 .
  22. ↑ Samyang 20mm F1.8 ED AS UMC. Samyang Optics, accessed February 21, 2020 .
  23. ↑ Samyang 21mm lens. (No longer available online.) Archived from the original on March 3, 2016 ; accessed on September 21, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.syopt.com
  24. ↑ Dustin Abbott: Review - Samyang (Rokinon) 21mm f / 1.4 for EF-M. In: http://www.canonrumors.com/ . April 4, 2016, accessed April 4, 2016 .
  25. ↑ TILT / SHIFT LENS 24mm F3.5 ED AS UMC. Samyang Optics, accessed February 21, 2020 .
  26. ↑ Samyang 35mm F1.2 ED AS UMC CS. Samyang Optics, accessed February 21, 2020 .
  27. ↑ Samyang 50mm lens. (No longer available online.) Archived from the original on March 3, 2016 ; accessed on September 21, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.syopt.com
  28. ↑ Dustin Abbott: Review - Samyang (Rokinon) 50mm f / 1.2 AS UMC. In: www.canonrumors.com. April 11, 2016, accessed April 11, 2016 .
  29. ↑ Samyang 85mm F1.8 ED UMC CS. Samyang Optics, accessed February 21, 2020 .
  30. ↑ Samyang 100mm lens. (No longer available online.) Archived from the original on March 4, 2016 ; accessed on September 21, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.syopt.com
  31. ↑ Samyang 135mm lens. (No longer available online.) Archived from the original on March 3, 2016 ; accessed on September 21, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.syopt.com
  32. ↑ Samyang 300mm lens. (No longer available online.) Archived from the original on March 4, 2016 ; accessed on September 21, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.syopt.com
  33. ↑ Overview. Retrieved December 6, 2019 .
  34. ↑ Overview. Retrieved December 6, 2019 .
  35. ↑ Overview. Retrieved December 6, 2019 .
  36. ↑ Tamron 18-200mm F / 3.5-6.3 Di III VC. Retrieved October 4, 2015 .
  37. ↑ NANOHA x5 for Canon EOS M. 2013, accessed October 4, 2015 .
  38. ↑ LAOWA 4 mm f / 2.8 Circular Fisheye. Retrieved February 21, 2020 .
  39. ↑ LAOWA 9 mm f / 2.8 ZERO-D. Retrieved February 21, 2020 .
  40. ↑ LAOWA 65 mm f / 2.8 2X Ultra Macro APO. Retrieved February 21, 2020 .
  41. ↑ With some EF lenses, it takes long to achieve focus in AF. Or correct focus may not be achieved (EOS M3 / EOS M10). Retrieved December 13, 2015 . : Support page on Canon UK
  42. ↑ This limitation applies to the following lenses:
    Current products: EF 50mm f / 1.4 USM, EF 50mm f / 1.8 II, EF 50mm f / 2.5 Compact Macro, EF 100mm f / 2.8 Macro USM, EF 75-300mm f / 4-5.6 III , EF 75-300mm f / 4-5.6 III USM Discontinued
    products: EF 15mm f / 2.8 Fisheye, EF-S 18-55mm f / 3.5-5.6, EF-S 18-55mm f / 3.5-5.6 II, EF -S 18-55mm f / 3.5-5.6 USM, EF-S 18-55mm f / 3.5-5.6 II USM, EF 20-35mm f / 2.8L, EF 22-55mm f / 4-5.6 USM, EF 24mm f / 2.8, EF 28mm f / 2.8, EF 28-70mm f / 3.5-4.5, EF 28-70mm f / 3.5-4.5 II, EF 28-80mm f / 3.5-5.6, EF 28-80mm f / 3.5-5.6II, EF 28-80mm f / 3.5-5.6 II USM, EF 28-80mm f / 3.5-5.6 III USM, EF 28-80mm f / 3.5-5.6 IV USM, EF 28-80mm f / 3.5-5.6 V USM, EF 28 -90mm f / 4-5.6, EF 28-90mm f / 4-5.6 II, EF 28-90mm f / 4-5.6 III, EF 28-90mm f / 4-5.6 USM, EF 28-90mm f / 4-5.6 II USM, EF 28-105mm f / 4-5.6, EF 28-105mm f / 4-5.6 USM, EF 28-200mm f / 3.5-5.6, EF 28-200mm f / 3.5-5.6 USM, EF 35mm f / 2 , EF 35-70mm f / 3.5-4.5, EF 35-70mm f / 3.5-4.5A, EF 35-80mm f / 4-5.6, EF 35-80mm f / 4-5.6 II, EF 35-80mm f / 4 -5.6 III, EF 35-80mm f / 4-5.6 USM, EF 35-80mm f / 4-5.6 PZ, EF 35-105mm f / 3.5-4.5, EF 35-105mm f / 4.5-5.6, EF 35-105mm f / 4.5- 5.6 USM, EF 35-135mm f / 3.5-4.5, EF 38-76mm f / 4.5-5.6, EF 50mm f / 1.8, EF 50-200mm f / 3.5-4.5, EF 50-200mm f / 3.5-4.5L, EF 55-200mm f / 4.5-5.6 USM, EF 55-200mm f / 4.5-5.6 II USM, EF 70-210mm f / 4, EF 75-300mm f / 4-5.6, EF 75-300mm f / 4-5.6 II, EF 75-300mm f / 4-5.6 USM, EF 75-300mm f / 4-5.6 II USM, EF 75-300mm f / 4-5.6 IS USM, EF 80-200mm f / 2.8L, EF 80-200mm f / 4.5-5.6, EF 80-200mm f / 4.5-5.6 II, EF 80-200mm f / 4.5-5.6 USM, EF 90-300mm f / 4.5-5.6, EF 90-300mm f / 4.5-5.6 USM, EF 100mm f / 2.8 Macro, EF 100-200mm f / 4.5A, EF 100-300mm f / 5.6, EF 100-300mm f / 5.6L, EF 135mm f / 2.8 Soft Focus, EF 400mm f / 2.8L USM