Canon EF-M lens mount

Canon EF/EF-S adapter, 22mm prime lens and 18-55mm standard zoom lens

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. It has an 18mm flange focal distance (compared to 44mm for EF and EF-S lenses), though 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. It allows the use of Canon EF and EF-S lenses with a Canon-made adapter, but it is not backwards-compatible with Canon's existing DSLR cameras.^[1]

Third-party lenses

Since 2014 some manufacturers have started producing compatible third-party lenses.^[2]

List of EF-M lenses

Focal length	Effective focal length (×1.6 crop factor)	Aperture range	Introduced	Macro	USM	STM	IS	L-series	DO	Filter size
11–22mm	17.6–35.2 mm	f/4–5.6	2013	No	No	Yes	Yes	No	No	55mm
18–55mm	28.8–88 mm	f/3.5–5.6	2012	No	No	Yes	Yes	No	No	52mm
55-200mm	88-320 mm	f/4.5-6.3	2014	No	No	Yes	Yes	No	No	52mm
22mm	35.2 mm	f/2	2012	Yes	No	Yes	No	No	No	43mm

Images

Canon Mount Adapter EF-EOS M
Canon EF-M 11-22mm f/4-5.6 IS STM
Canon EF-M 18-55mm f/3.5-5.6 IS STM
Canon EF-M 55-200mm f/4.5-6.3 IS STM
Canon EF-M 22mm f/2 STM

References

Wikimedia Commons has media related to Canon EF-M lenses.

Canon EF/EF-S/EF-M lenses

EF-S zoom	EF-S 10–18mm EF-S 10–22mm EF-S 15–85mm EF-S 17–55mm EF-S 17–85mm EF-S 18–55mm EF-S 18–135mm EF-S 18–200mm EF-S 55–250mm

Ultra-wide zoom	EF 11-24mm EF 16–35mm EF 17–40mm

Standard zoom	EF 24–70mm EF 24–105mm EF 28–135mm EF 28–300mm

Telephoto zoom	EF 70–200mm EF 70–300mm EF 100–400mm EF 200–400mm

Wide-angle prime	EF 14mm EF 20mm EF 24mm EF-S 24mm EF 28mm EF 35mm

Standard prime	EF 40mm EF 50mm

Telephoto prime	EF 85mm EF 100mm EF 135mm EF 200mm

Super telephoto prime	EF 300mm EF 400mm EF 500mm EF 600mm EF 800mm

Distorting lenses	EF 8–15mm Fisheye EF 135mm with Softfocus

Tilt-shift	TS-E 17mm TS-E 24mm TS-E 45mm TS-E 90mm

Macro	EF 50mm Compact Macro EF-S 60mm Macro MP-E 65mm 1–5x Macro EF 100mm Macro EF 180mm Macro

EF-M zoom	EF-M 11–22mm EF-M 18–55mm EF-M 55-200mm

EF-M prime	EF-M 22mm

Lens accessories	Extender EF

Discontinued zoom	EF 17–35mm EF 20–35mm EF 22–55mm EF 24–85mm EF 28–70mm EF 28–80mm EF 28–90mm EF 28–105mm EF 28–200mm EF 35–80mm EF 35–105mm EF 35–350mm EF 55–200mm EF 70–210mm EF 75–300mm EF 80–200mm EF 90–300mm EF 100–200mm EF 100–300mm

Discontinued prime	EF 15mm Fisheye EF 1200mm

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