OM System TG-7vs A7R II
OM System
OM System TG-7 (2023)
Starting from £449 new
Best for Adventure, underwater & outdoor use
View OM System TG-7
Sony
A7R II (2015)
Starting from £799 new
Best for Portrait, landscape & studio photography
View A7R II
GearScore™ Verdict — Which should you buy?
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.
Portrait, Landscape & Studio Photography — A7R II (2015): The A7R II transformed the A7R series — adding IBIS, 4K video, BSI sensor tech, and phase-detect AF in one generation. A landmark Sony camera.
Who should buy what
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
A7R II (2015)
- Landscape and architecture photographers who want 42MP with IBIS for handheld shooting
- Portrait and studio photographers who need high resolution with improved AF reliability
- Sony FE system users who want a capable high-resolution body at a used price
- A7R I owners who need the stabilisation, 4K, and improved AF the original lacked
Quick take: The a7r ii has the highest resolution at 42mp; the om system tg-7 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM System TG-7 (2023) | A7R II (2015) |
|---|---|---|
| Price | £449 | £799 |
| Sensor | 12MP BSI CMOS | 42.4MP Full-Frame BSI CMOS Exmor R |
| Resolution | 12.0MP | 42.4MP |
| Video | 4K/30p, 1080p/120p | 4K/30p (S35 or full-frame), 1080p/120p |
| Autofocus | Hybrid phase/contrast AF | 399 phase-detect + 25 contrast-detect AF points, face detection |
| Stabilisation | Digital IS | IBIS — 5-axis, up to 4.5 stops (first A7R with IBIS) |
| Burst Rate | 20fps | 5fps |
| Battery Life | 340 shots (CIPA) | ~290 shots (CIPA) |
| Weight | 253g | 625g (with battery and card) |
| Dimensions | 113.0 × 66.5 × 32.7mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | None | EVF, OLED 2.36M dots, 0.78× magnification |
| Screen | 3.0" fixed TFT LCD | 3.0" tilting LCD, 1.23M dots (no touch) |
| Mount | Fixed 25mm-equiv f/2.0 lens (4× optical zoom) | Sony FE (full-frame E-mount) |
| Memory Cards | Single SD UHS-I | Single SD UHS-I slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB, Wi-Fi, NFC |
Suitability by genre
| Genre | OM System TG-7 | A7R II |
|---|---|---|
| Adventure & Outdoor | — | |
| Underwater | — | |
| Travel | ||
| Family & Everyday | — | |
| Street | — | |
| Portrait | ||
| Landscape | — | |
| Architecture | — | |
| Vlogging & Video | — | |
| Sports & Action | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history