EF Lenses

EF-M Lens

EF-M22mm f/2 STM

  • Specifications
  • Block diagram
  • Sample Image
Marketed September 2012
Original Price 30,000 yen
Lens Construction (group) 6
Lens Construction (element) 7
No. of Diaphragm Blades 7
Minimum Aperture 22
Image Stabilizer (stops) None
Closest Focusing Distance (m) 0.15
Maximum Magnification (x) 0.21
Aspherical Lens (elements) 1
Filter Size (mm) 43
Maximum Diameter X Length (mm) 60.9 × 23.7
Weight (g) 105

The stylish EF-M22mm f/2 STM pancake lens features a compact, lightweight body design that measures only 23.7 mm in length and weighs approximately 105 g—an achievement made possible through a retractable lens design and the incorporation of an STM. Employing a glass-mold aspherical lens element, the new EF-M lens delivers a high-speed f/2 maximum aperture while achieving high-image-quality performance with high resolution and high contrast, even out to the peripheral areas of the image when shooting at a short distance from the subject. Furthermore, the combination of the lens’s high-speed maximum aperture and the EOS M’s large sensor size* makes possible highly expressive images that take advantage of the background-blur effect. The EF-M22mm f/2 STM’s floating focus system offers improved plane movement to deliver not only a minimum focusing distance of 0.15 m and a maximum magnification of 0.21x, but also improved image quality when shooting subjects up close. When the camera’s focus mode is set to AF + MF, the full-time manual focus function allows users to make quick manual adjustments to focus after AF is complete by simply turning the focusing ring.

* Compared with compact digital cameras

Block diagram

Aspherical lens

Sample Images 1 Sample Images 2
6.06MB 5.25MB
Sample Images 3 Sample Images 4
6.60MB 5.66MB