Sony a57 vs Canon EOS M

This is a full comparison between the cameras Sony a57 and Canon EOS M. We compare them by looking at the categories you see below.

Manufacturing

Sony a57 is manufacturered by Sony but Canon EOS M is from Canon. Both Sony and Canon are well known brands though.

Type of camera

Sensors / crop factor

These cameras have different sensors. Sony a57 has a "Sony APS-C"-sensor while Canon EOS M has a "Canon APS-C"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Sony)
Camera selection can affect the focal length (Canon)

Resolution

Sony a57 has a 16 MP (Megapixels) resolution while Canon EOS M has 18 MP. If we break down this in more detail this is the data behind the numbers:

Canon EOS M has a 12 % larger resolution than Sony a57. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Sony a57 has a larger ISO-range than Canon EOS M. Sony a57 has an ISO range that stretches from 100 to 16000 while Canon EOS M has 100 to 12800.

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Worth mentioning is that Canon EOS M belongs to the Canon EOS M-system and needs an adapter to work with Canons EF, EF-S, MP-E, and TS-E lenses. You can read more about this adapter here:
Canon Lens Mount Adapter EF-EOS M

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony a57
Lens compatibility chart for Canon EOS M

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a57 can shoot up to 12 pictures per seconds and Canon EOS M can shoot up to 4,3 pictures per seconds.

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

In this case, both Sony a57 and Canon EOS M can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Sony a57 weighs 618 gr (equal to 1.36 lb) which is 107% heavier than Canon EOS M and its 298 gr (or 0.66 lb).

Sony a57 vs Canon EOS M Specs

Below you will find the complete and detailed technical specs for both Sony a57 and Canon EOS M, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product	Sony a57	Canon EOS M
Name	Sony a57	Canon EOS M
Manufacturer	Sony	Canon
Release Date and Price	Sony a57	Canon EOS M
Release Year	2012	2012
Release Date	2012-03-13	2012-07-23
MSRP	699 USD	799 USD
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Camera Type	Sony a57	Canon EOS M
Camera Type	SLT	Mirrorless
Sensor	Sony a57	Canon EOS M
Sensor Size	APS-C (approx 23.5 x 15.6 mm)	APS-C (approx 22.3 x 14.9 mm)
Sensor Type	CMOS	CMOS
Resolution	4912 x 3264 pixels	5184 x 3456 pixels
Megapixels	16 MP	18 MP
Image Processor	Bionz	DIGIC 5
Image	Sony a57	Canon EOS M
ISO Range	100 - 16000	100 - 12800
White Balance Presets	9	6
Custom White Balance	Yes	Yes
Image Stabilization	Yes (Sensor-Shift)	No
Image Stabilization CIPA Rating	0 stops	0 stops
Uncompressed format	RAW	RAW
Optics & Focus	Sony a57	Canon EOS M
Autofocus Motor	Yes	Yes
Autofocus	Phase Detect Multi Area Selective Single Point Tracking Single Continuous Face Detection LiveView	Contract Detect (sensor) Phase Detect Multi Area Selective Single Point Single Continuous Face Detection LiveView
Focus Points	15	31
Lens Mount	Sony A See Compatible Lenses	Canon EF-M See Compatible Lenses
Focal Length Multiplier	APS-C Sensor (1.5x) 1.5x multiplier Example: 24 mm becomes 36 mm 50 mm becomes 75 mm 100 mm becomes 150 mm 200 mm becomes 300 mm	APS-C Sensor 1.6x multiplier Example: 24 mm becomes 38 mm 50 mm becomes 80 mm 100 mm becomes 160 mm 200 mm becomes 320 mm
Screen & Viewfinder	Sony a57	Canon EOS M
Articulated LCD	Fully articulated	Fixed
Screen size	3”	3”
Screen dots	921000	1040000
Touch screen	No	Yes
Screen type	Xtra Fine TFT drive with TruBlack technology	Clear View II TFT LCD
Live view	Yes	Yes
Viewfinder Type	Electronic	No Viewfinder
Viewfinder Coverage	100%
Viewfinder Magnification	1.04× (0.69× 35mm equiv.)
Viewfinder Resolution	N/A	0
Photography features	Sony a57	Canon EOS M
Frames per second	12 fps	4,3 fps
Minimum Shutter Speed	30 seconds	60 seconds
Maximum Shutter Speed	1/4000 seconds	1/4000 seconds
Built-in Flash	Yes	No
Built-in Flash Range	10 meters	N/A
External Flash	Yes	Yes
Self-Timer	Yes	Yes
Time-lapse	No	No
Metering modes	Multi Center Weighted Spot	Multi Center Weighted Spot Partial
Exposure Compensation	+/- 3 (at 1/3 EV steps)	+/- 3 (at 1/3 EV, 1/2 EV steps)
Videography features	Sony a57	Canon EOS M
Video recording	Yes	Yes
Video format	MPEG4 H.264 AVCHD	MPEG4 H.264
Video resolution	1440 x 1080 1920 x 1080	1280 x 720 1920 x 1080
Built-in Microphone	Yes	Yes
Built-in Speakers	Yes	Yes
Storage	Sony a57	Canon EOS M
Memory Card	Memory Stick Pro Duo SD/SDHC	SD/SDHC
Connectivity	Sony a57	Canon EOS M
HDMI Output	Yes	Yes
Microphone Port	No	No
Headphone Port	No	No
Wireless	Yes Eye-Fi Connected	Yes Eye-Fi Connected
Remote Control	Yes (Optional)	No
GPS	No	Yes Optional via GP-E2
Body & Dimensions	Sony a57	Canon EOS M
Enviromentally sealed	No	No
Battery	Battery Pack	Battery Pack
Battery Details	Rechargeable NP-FM500H battery & charger	Lithium-Ion LP-E12 rechargeable battery & charger
Battery Life (CIPA)	550 shots	230 shots
Width	132 mm	109 mm
Height	98 mm	66 mm
Depth	81 mm	32 mm
Weight	618 gram	298 gram