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Quick take: The A7CR has the highest resolution at 61MP; the A7R III is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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A7CR — Travel, Landscape & Portrait Photography With Minimal Kit: The world's smallest 61MP full-frame camera — A7R V quality in a pocketable A7C body.
A7R III — Landscape, Studio & Commercial Photography: The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.
| Specification | A7CRSony · 2023 | A7R IIISony · 2017 |
|---|---|---|
| Price | £2,599 | £747 usedBest |
| Sensor | 61.0MP full-frame BSI CMOS | 42.4MP full-frame BSI Exmor R CMOS |
| Resolution | 61.0MPBest | 42.4MP |
| Video | 4K/60p 10-bit, 1080p/120p — S-Log3, S-Cinetone | 4K/30p (full-frame readout), 1080p/120p |
| Autofocus | AI subject recognition — phase-detect with human, animal, bird detection | 399 phase-detect + 425 contrast AF points — real-time Eye AF |
| Stabilisation | 7-stop IBIS | 5-axis IBIS — 5.5 stops |
| Burst Rate | 8fps mechanical, 15fps electronic | 10fps with AF/AE trackingBest |
| Battery Life | ~530 shots (CIPA) | ~650 shots (CIPA)Best |
| Weight | 514g (body only)Best | 650g (body only) |
| Dimensions | 124.0 × 71.1 × 63.4mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.70× 2.36M-dot | EVF, 3.69M dots, 0.78× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.03M dots | 3.0" touchscreen, tilting |
| Mount | Sony E-mount (full-frame) | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single SD UHS-II slot | Dual SD slots (one UHS-II) |
| Connectivity | USB-C 3.2 Gen 2, Wi-Fi 5GHz, Bluetooth 5.0 | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
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 →