Canon EF-M 22mm f/2 STM Lens

The Canon EF-M 22mm f/2 STM Lens is an ultra-slim, compact pancake prime lens designed exclusively for Canon’s EOS M mirrorless camera system, offering a moderate wide-angle field of view in a body small and light enough to carry everywhere. On Canon’s APS-C sensor, the 22mm focal length delivers a 35mm-equivalent field of view of approximately 35.2mm, closely matching a classic standard perspective well suited to street photography, everyday shooting, and environmental portraits.

Optically, the lens is built from 7 elements in 6 groups, with a bright f/2 maximum aperture that pairs well with the EOS M’s large APS-C sensor to deliver exceptional low-light performance along with pleasing background blur in portraits. A single aspherical lens element delivers high resolution and high contrast while helping keep the lens’s physical size down, and a 7-blade circular aperture diaphragm contributes to smooth, soft-focus backgrounds. Super Spectra coatings further reduce ghosting and flare.

Autofocus is handled by a built-in stepping motor (STM), providing smooth and quiet continuous autofocus well suited to both stills and video recording, using a “unit focus” (overall linear extension) system rather than Canon’s internal focusing design, with focus operating by-wire. The lens has a short minimum focusing distance of just 5.91 in. (0.15m), yielding a maximum magnification of 0.21x, allowing photographers to get closer to their subjects for modest close-up work.

Build quality centers on a durable metal barrel and metal mount, finished in a graphite silver color, with a compact profile measuring just 2.4 x 0.9 in. (60.9 x 23.7mm) and weighing only 3.7 oz. (105g), among the smallest filter sizes Canon has produced at 43mm. The lens uses a screw-on filter thread rather than a bayonet-mount hood, and does not include image stabilization or weather sealing, consistent with its compact, affordable positioning.

As an APS-C-specific lens, the EF-M 22mm f/2 STM is designed exclusively for Canon’s EF-M mount EOS M mirrorless cameras and is not compatible with Canon’s EF, EF-S, or RF mount systems without an appropriate adapter.

Key Features
– 22mm f/2 moderate wide-angle pancake prime lens for Canon EF-M mount
– Approximately 35.2mm full-frame-equivalent field of view
– 7 elements in 6 groups, including 1 aspherical element
– Super Spectra coatings
– STM (stepping motor) autofocus with by-wire manual focus
– 7-blade circular aperture diaphragm
– Minimum focusing distance of 5.91 in. (0.15m); 0.21x maximum magnification
– 43mm filter thread
– Durable metal barrel and mount construction
– No image stabilization; not weather-sealed
– Ultra-compact pancake design (approximately 105g)
– Designed exclusively for Canon EOS M (EF-M mount) mirrorless cameras