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Quick take: The A7 IV has the highest resolution at 33MP; the A7 IV 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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A7 IV — Portrait & Wedding Photography: The full-frame portrait benchmark — 33MP, AI Eye AF, and exceptional skin-tone rendering in a pro-grade hybrid body.
| Specification | Canon EOS R6 VCanon · 2026 | A7 IVSony · 2021 |
|---|---|---|
| Price | £2,399 | £2,099Best |
| Sensor | 32.5MP full-frame CMOS | 33MP Full-frame BSI Exmor R CMOS |
| Resolution | 32.5MP | 33.0MPBest |
| Video | 7K internal RAW (CFexpress), oversampled 4K/60p, non-oversampled 4K/120p, 10-bit | 4K/60p oversampled, 10-bit internal, S-Log3, S-Cinetone |
| Autofocus | Dual Pixel CMOS AF II with subject detection | 759-point phase-detect, AI subject recognition |
| Stabilisation | 7.5-stop IBIS | 5-axis IBIS, 5.5 stops |
| Burst Rate | 40fpsBest | 10fps mechanical, 30fps electronic |
| Battery Life | 620 shots (CIPA, LCD — no viewfinder)Best | ~580 shots (CIPA) |
| Weight | 688g (with battery and card) | 659g (body only)Best |
| Dimensions | — | 131.3 × 96.4 × 79.8mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | None (screen only) | EVF, 3.69M dots, 0.78× magnification |
| Screen | Fully articulating touchscreen | 3.0" vari-angle touchscreen |
| Mount | Canon RF-mount | Sony FE (full-frame E-mount) |
| Memory Cards | CFexpress Type B + SD | Slot 1 CFexpress Type A / SD UHS-II, slot 2 SD UHS-II |
| Connectivity | USB-C, HDMI, Wi-Fi, Bluetooth | USB-C (3.2 Gen 2), Bluetooth, Wi-Fi |
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 →