Sony a850 vs Canon EOS M

This is a full comparison between the cameras Sony a850 and Canon EOS M. We compare them by looking at the categories you see below.

Manufacturing

Sony a850 is manufacturered by Sony but Canon EOS M is from Canon. Both Sony and Canon are well known brands though.

Type of camera

Sony a850 is a DSLR camera while Canon EOS M is a Mirrorless camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Sony a850 has a "Sony Full Frame"-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 a850 has a 25 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:

Sony a850 has a 36 % larger resolution than Canon EOS M. 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

Canon EOS M has a larger ISO-range than Sony a850. Canon EOS M has an ISO range that stretches from 100 to 12800 while Sony a850 has 200 to 3200.

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 a850
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 a850 can shoot up to 3 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.

It is only one of these two cameras that support recording movies and movie clips and that is Canon EOS M. Sadly, the Sony a850 does not support this.

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 a850 weighs 895 gr (equal to 1.97 lb) which is 200% heavier than Canon EOS M and its 298 gr (or 0.66 lb).

Sony a850 vs Canon EOS M Specs

Below you will find the complete and detailed technical specs for both Sony a850 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 a850	Canon EOS M
Name	Sony a850	Canon EOS M
Manufacturer	Sony	Canon
Release Date and Price	Sony a850	Canon EOS M
Release Year	2009	2012
Release Date	2009-08-27	2012-07-23
MSRP	1999 USD	799 USD
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Camera Type	Sony a850	Canon EOS M
Camera Type	DSLR	Mirrorless
Sensor	Sony a850	Canon EOS M
Sensor Size	Full Frame (approx 36 x 24 mm)	APS-C (approx 22.3 x 14.9 mm)
Sensor Type	CMOS	CMOS
Resolution	6048 x 4032 pixels	5184 x 3456 pixels
Megapixels	25 MP	18 MP
Image Processor	Bionz	DIGIC 5
Image	Sony a850	Canon EOS M
ISO Range	200 - 3200	100 - 12800
White Balance Presets	7	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 a850	Canon EOS M
Autofocus Motor	Yes	Yes
Autofocus	Phase Detect Multi Area Selective Single Point Single Continuous	Contract Detect (sensor) Phase Detect Multi Area Selective Single Point Single Continuous Face Detection LiveView
Focus Points	9	31
Lens Mount	Sony A See Compatible Lenses	Canon EF-M See Compatible Lenses
Focal Length Multiplier	Full frame No multiplier Example: 24 mm remains 24 mm 50 mm remains 50 mm 100 mm remains 100 mm 200 mm remains 200 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 a850	Canon EOS M
Articulated LCD	Fixed	Fixed
Screen size	3”	3”
Screen dots	921600	1040000
Touch screen	No	Yes
Screen type	TFT Xtra Fine color LCD	Clear View II TFT LCD
Live view	No	Yes
Viewfinder Type	Optical (pentaprism)	No Viewfinder
Viewfinder Coverage	98%
Viewfinder Magnification	0.74×
Viewfinder Resolution	N/A	0
Photography features	Sony a850	Canon EOS M
Frames per second	3 fps	4,3 fps
Minimum Shutter Speed	30 seconds	60 seconds
Maximum Shutter Speed	1/8000 seconds	1/4000 seconds
Built-in Flash	No	No
Built-in Flash Range	N/A	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 a850	Canon EOS M
Video recording	No	Yes
Video format	N/A	MPEG4 H.264
Video resolution	N/A	1280 x 720 1920 x 1080
Built-in Microphone	No	Yes
Built-in Speakers	No	Yes
Storage	Sony a850	Canon EOS M
Memory Card	Compact Flash Memory Stick Pro Duo	SD/SDHC
Connectivity	Sony a850	Canon EOS M
HDMI Output	Yes	Yes
Microphone Port	No	No
Headphone Port	No	No
Wireless	No	Yes Eye-Fi Connected
Remote Control	Yes (Wired or Wireless (Optional))	No
GPS	No	Yes Optional via GP-E2
Body & Dimensions	Sony a850	Canon EOS M
Enviromentally sealed	No	No
Battery	Battery Pack	Battery Pack
Battery Details	Lithium-Ion NP-FM500H rechargeable battery & charger	Lithium-Ion LP-E12 rechargeable battery & charger
Battery Life (CIPA)	880 shots	230 shots
Width	156 mm	109 mm
Height	117 mm	66 mm
Depth	82 mm	32 mm
Weight	895 gram	298 gram