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Quick take: The A7R III has the highest resolution at 42MP; the Zf is the most affordable.
16 specs side by side·16 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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Zf — Street & Travel Photography: Full-frame performance in a stunning retro body — the Zf's 8-stop IBIS and gorgeous design make it uniquely compelling.
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 | ZfNikon · 2023 | A7R IIISony · 2017 |
|---|---|---|
| Price | £2,099 | £1,799Best |
| Sensor | 24.5MP Full-frame BSI CMOS | 42.4MP full-frame BSI Exmor R CMOS |
| Resolution | 24.5MP | 42.4MPBest |
| Video | 4K/30p oversampled, FHD/120p, N-Log, 10-bit | 4K/30p (full-frame readout), 1080p/120p |
| Autofocus | Phase-detect 273 points, subject detection (human/animal/vehicle) | 399 phase-detect + 425 contrast AF points — real-time Eye AF |
| Stabilisation | 5-axis IBIS, 8.0 stops | 5-axis IBIS — 5.5 stops |
| Burst Rate | 14fps mechanical, 30fps electronicBest | 10fps with AF/AE tracking |
| Battery Life | ~380 shots (CIPA) | ~650 shots (CIPA)Best |
| Weight | 630g (body only)Best | 650g (body only) |
| Dimensions | 144.0 × 103.0 × 49.0mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 3.69M dots, 0.80× magnification | EVF, 3.69M dots, 0.78× magnification |
| Screen | 3.2" vari-angle touchscreen | 3.0" touchscreen, tilting |
| Mount | Nikon Z-mount (full-frame) | Sony FE mount (full-frame E-mount) |
| Memory Cards | SD UHS-II + microSD UHS-I | Dual SD slots (one UHS-II) |
| Connectivity | USB-C 3.2, Bluetooth, Wi-Fi | 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 →