Canon EOS M Review

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This is an in-depth review of the Canon EOS M camera that came out on July 23, 2012, the first mirrorless interchangeable-lens camera from Canon. Along with the EOS M, Canon also announced the first two lenses for the new “EF-M” mount: Canon EF-M 18-55mm f/3.5-5.6 IS STM and Canon EF-M 22mm f/2 STM. Among major camera manufacturers, Canon was the last to enter the mirrorless market. Aside from Panasonic and Olympus sharing the same Micro Four Thirds sensor and Nikon going with a smaller “CX” sensor, all other manufacturers chose large APS-C sized sensors (Samsung, Sony, Fuji and Pentax), each with its own proprietary lens mount. With the introduction of the EOS M system, Canon has officially joined the APS-C club. Instead of developing a new sensor format, Canon chose to reuse the same 18 MP sensor from the EOS Rebel 650D / T4i DSLR camera. Canon also released an EF-M to EF / EF-S adapter for mounting existing and future DSLR lenses on the EOS M, with full compatibility with all lens functions such as autofocus and image stabilization. In this review, I will go over the features and capabilities of the camera and compare it to other mirrorless options, including Nikon 1, Sony NEX series and Olympus OM-D E-M5.

Canon EOS M

With its arch-rival Nikon debuting the Nikon 1 CX mount with a smaller 2.7x crop factor sensor a year earlier, Canon made sure that the 1.6x crop factor APS-C sensor was in the headlines of its announcements, with “The Quality of a Canon DSLR” title being a major part of the initial marketing effort. I spent over two months with the Canon EOS M while testing other mirrorless cameras for my “Battle of the Mirrorless” series, so I will be doing a lot of comparisons of the EOS M to other cameras in this review, along with discussing the strengths and weaknesses of the camera. Let’s take a look at the Canon EOS M in detail.

1) Canon EOS M Specifications

Main Features:

  1. 18 MP CMOS image sensor, 4.3 µm pixel pitch
  2. ISO 100-12800 native, expandable to 25600 in H mode)
  3. Hybrid CMOS AF (phase-detection AF/contrast-detection AF)
  4. 31 AF points
  5. 3″ Touchscreen LCD with 1040K dots
  6. Full 1080p HD movie shooting 30p/24p/25p
  7. Face Detection + Object Tracking AF
  8. 4 Standard “Creative Zone” Exposure Modes (Program, Shutter Priority, Aperture Priority and Manual) and 8 additional presets
  9. Battery life for up to 230 shots
  10. Vertical-travel, mechanical, focal-plane shutter with all speeds electronically-controlled (1/4000 max)
  11. Compatible with Canon EF and EF-S lenses via an optional EF-EOS M mount adapter
  12. Standard size flash hot shoe
  13. Up to 4.3 fps continuous shooting

Canon EOS M Review (3)

Detailed technical specifications for the Canon EOS M are available at

Canon EOS M Review3.4583333333333Nasim Mansurov2013-01-04 22:55:36A detailed review of the Canon EOS M mirrorless camera with a full analysis, image samples and comparisons to other mirrorless cameras
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Avatar of Nasim Mansurov About Nasim Mansurov

is a professional photographer based out of Denver, Colorado. He is the author and founder of Photography Life, along with a number of other online resources. Read more about Nasim here.