EOS Mvs OM System TG-7
Canon
EOS M (2012)
Starting from £80 new
Best for Canon mirrorless history & EF-M collectors
View EOS M
OM System
OM System TG-7 (2023)
Starting from £449 new
Best for Adventure, underwater & outdoor use
View OM System TG-7
GearScore™ Verdict — Which should you buy?
Canon Mirrorless History & Ef-M Collectors — EOS M (2012): 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.
Adventure, Underwater & Outdoor Use — OM System TG-7 (2023): Waterproof to 15m, freezeproof and shockproof — the TG-7 is the most capable rugged compact for adventure and outdoor use.
Who should buy what
EOS M (2012)
- 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
OM System TG-7 (2023)
- Divers and snorkellers who need a waterproof camera without a housing
- Outdoor and adventure photographers who want a rugged pocket compact
- Parents who want an indestructible camera for children and family adventures
- Travellers who want a tough backup camera that can go anywhere
Quick take: The eos m has the highest resolution at 18mp; the eos m is the most affordable; only the om system tg-7 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS M (2012) | OM System TG-7 (2023) |
|---|---|---|
| Price | £80 | £449 |
| Sensor | 18MP APS-C CMOS | 12MP BSI CMOS |
| Resolution | 18.0MP | 12.0MP |
| Video | 1080p 30fps | 4K/30p, 1080p/120p |
| Autofocus | Contrast-detect AF only — notoriously slow | Hybrid phase/contrast AF |
| Stabilisation | — | Digital IS |
| Burst Rate | 4fps | 20fps |
| Battery Life | ~230 shots (CIPA) | 340 shots (CIPA) |
| Weight | 262g (body only) | 253g |
| Dimensions | 108.6 × 66.5 × 32.3mm | 113.0 × 66.5 × 32.7mm |
| Weather Sealed | No | Yes |
| Viewfinder | None (optional EVF accessory) | None |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.0" fixed TFT LCD |
| Mount | Canon EF-M mount | Fixed 25mm-equiv f/2.0 lens (4× optical zoom) |
| Memory Cards | 1× SD/SDHC/SDXC | Single SD UHS-I |
| Connectivity | USB 2.0 | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | EOS M | OM System TG-7 |
|---|---|---|
| Casual | — | |
| Travel | ||
| Street | ||
| Portrait | ||
| Vlogging & Video | — | |
| Adventure & Outdoor | — | |
| Underwater | — | |
| Family & Everyday | — |
More comparisons with EOS M
Camera family history