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EOS M vs OM-D E-M5

Quick take: The EOS M has the highest resolution at 18MP; the OM-D E-M5 is the most affordable; only the OM-D E-M5 is weather sealed.

16 specs side by side·13 genres scored·UK prices from Wex Photo Video and Clifton Cameras

How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.

Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more

Verdictwhich should you buy?

EOS M — Canon Mirrorless History & Ef-M Collectors: Canon's first mirrorless — a historic body that broke new ground with touch-AF and EF-M, but its sluggish contrast-detect system quickly became its Achilles heel.

Who should buy what
EOS M (2012)
is the right camera for you if…
  • Canon shooters who want the camera that started Canon's mirrorless story
  • Budget first-time mirrorless buyers who already own EF/EF-S glass
  • Collectors of significant digital camera milestones
Full specificationsthe better value in each row is highlighted
Specification EOS MCanon · 2012OM-D E-M5Olympus · 2012
Price £40 used£40 usedBest
Sensor 18MP APS-C CMOS16.1MP Micro Four Thirds Live MOS
Resolution 18.0MPBest16.1MP
Video 1080p 30fpsFull HD 1080/60i
Autofocus Hybrid CMOS AF (phase + contrast), notoriously slowContrast-detect AF, 35 areas, face and eye detection
Stabilisation —5-axis in-body stabilisation
Burst Rate 4fps9fpsBest
Battery Life ~230 shots (CIPA)~360 shots (CIPA)Best
Weight 262g (body only)Best425g (with battery)
Dimensions 108.6 × 66.5 × 32.3mm121.9 × 88.9 × 43.2mm
Weather Sealed Not weather sealedYesBest
Viewfinder No viewfinderEVF, 1.44M dots
Screen 3.0" fixed touchscreen, 1.04M dots3.0" tilting OLED touch screen, 610k dots
Mount Canon EF-M mountMicro Four Thirds
Memory Cards 1× SD/SDHC/SDXCSingle SD slot
Connectivity USB 2.0USB 2.0 multi-connector, micro HDMI, hot shoe, Accessory Port 2

Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.

How they score by genreengine base scores out of 10
Genre
EOS M
OM-D E-M5
Portrait
4.9/10
4.9/10
Street
6.6/10
6.0/10
Travel
6.0/10
5.9/10
Wedding & Events
3.6/10
4.0/10
Documentary
4.5/10
4.1/10
Sports & Action
3.6/10
5.3/10
Landscape
4.2/10
4.7/10
Wildlife
3.9/10
6.1/10
Casual
4.9/10
4.3/10
Food
4.6/10
5.5/10
Macro
3.9/10
5.1/10
Architecture
3.8/10
4.4/10
Astrophotography
4.0/10
3.7/10

Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →

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