Canon EF-M lens mount
The Canon EF-M lens mount, introduced in 2012, is a derivative of the Canon EF lens mount designed for use with the Canon EOS M mirrorless interchangeable-lens camera. The EF-M lens mount is one of Canon's two new systems for mirrorless cameras, the other being the RF mount.
EF-M lens mount of a Canon EF/EF-S to EF-M adapter mount | |
Type | bayonet |
---|---|
Inner diameter | 47 mm |
Flange | 18 mm |
The M system has an 18 mm flange focal distance (compared to 44 mm for EF and EF-S) and a 47 mm throat diameter (compared to 54 mm for EF and EF-S). As it is designed for use with an APS-C-sized image sensor, it features the same crop factor (of roughly 1.6) as the existing EF-S lens mount.
The M system is somewhat limited as Canon has issued relatively few native lenses, listed below. There is a lack of native lenses with a large aperture, the exceptions being 22 mm f/2.0 and 32 mm f/1.4. In 2014, third party manufacturers started to present their M lenses. In addition, it is possible to use Canon EF and EF-S lenses (made for the Canon DSLRs) with an adapter. This solution reportedly works well also with regard to the autofocus, but it takes away the size advantage of the smaller M system. Suitable adapters (from EF to M or from EF-S to M) are made by Canon as well as third party manufacturers. The adapter solution is not backwards-compatible with Canon's full-frame DSLR cameras: this means that you cannot put M lenses on a non-M DSLR.[1]
Compatibility
The cameras that can use the EF-M mount are:
List of EF-M lenses from Canon
Focal length | Equivalent focal length (×1.6 crop factor) |
Aperture range | Introduced | Macro | USM | STM | IS | L-series | DO | Filter size | Lens diameter | Lens length | Weight |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
11–22 mm | 18 – 35 mm | f/4 – 5.6 | 2013 | No | No | Yes | Yes | No | No | 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 | No | No | 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 | No | No | 52 mm | 60.9 mm | 61.0 mm | 210 g |
18–150 mm | 29 – 240 mm | f/3.5 – 6.3 | 2016 | No | No | Yes | Yes | No | No | 55 mm | 60.9 mm | 86.5 mm | 300 g |
55–200 mm | 88 – 320 mm | f/4.5 – 6.3 | 2014 | No | No | Yes | Yes | No | No | 52 mm | 60.9 mm | 86.5 mm | 260 g |
22 mm | 35 mm | f/2 | 2012 | No | No | Yes | No | No | No | 43 mm | 60.9 mm | 23.7 mm | 105 g |
28 mm | 45 mm | f/3.5 | 2016 | Yes | No | Yes | Yes | No | No | 43 mm | 60.9 mm | 45.5 mm | 130 g |
32 mm | 51 mm | f/1.4 | 2018 | No | No | Yes | No | No | No | 43 mm | 60.9 mm | 56.5 mm | 235 g |
List of EF-M lenses from 3rd-party (AF only)
Manufacturer | Focal length | Equivalent focal length (×1.6 crop factor) |
Aperture range | Introduced | Filter size |
---|---|---|---|---|---|
Tamron | 18 – 200 mm | 29 – 320 mm | f/3.5 – 6.3 | 2014 | 55 mm |
Sigma | 16 mm | 26 mm | f/1.4 | 2019 | 67 mm |
Sigma | 30 mm | 48 mm | f/1.4 | 2019 | 52 mm |
Sigma | 56 mm | 90 mm | f/1.4 | 2019 | 55 mm |
Viltrox | 23 mm | 37 mm | f/1.4 | 2020 | 52 mm |
Viltrox | 33 mm | 53 mm | f/1.4 | 2020 | 52 mm |
Viltrox | 56 mm | 90 mm | f/1.4 | 2020 | 52 mm |
Images
References
Wikimedia Commons has media related to Canon EF-M lenses. |
Wikimedia Commons has media related to EF-M lens mount. |
- "Canon EOS M hands-on preview". DPReview.
- https://www.usa.canon.com/cusa/about_canon/newsroom/press_releases?pageKeyCode=pressreldetail&docId=0901e0248105d566
- "Step Up and Explore the Wonders of Photography With the Compact Yet Powerful New Canon EOS M100 Camera". Canon U.S.A., Inc. | Press Release Details.