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Quick take: The A1 II has the highest resolution at 50MP; the EOS 5D Mark 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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A1 II — Professional Sports, Wildlife & High-Resolution Studio Work: The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.
| Specification | EOS 5D Mark IIICanon · 2012 | A1 IISony · 2024 |
|---|---|---|
| Price | £219Best | £5,699 |
| Sensor | 22.3MP full-frame CMOS | 50.1MP full-frame stacked BSI CMOS |
| Resolution | 22.3MP | 50.1MPBest |
| Video | Full HD 1080p/30, 720p/60 | 8K/30p, 4K/120p 10-bit, S-Log3 |
| Autofocus | 61-point phase-detect (41 cross-type) via viewfinder; contrast AF with face detection in live view | AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train |
| Stabilisation | No IBIS (lens-based stabilisation only) | 8.5-stop IBIS (with in-lens OSS) |
| Burst Rate | 6fps | 30fps electronic (with full AF/AE), 10fps mechanicalBest |
| Battery Life | ~950 shots (CIPA)Best | ~530 shots (CIPA) |
| Weight | 950g (with battery) | 743g (body only)Best |
| Dimensions | 152 × 116.4 × 76.4mm | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Optical pentaprism, 100% coverage, 0.71x | EVF 0.9× 9.44M-dot — the highest resolution EVF available |
| Screen | 3.2" fixed LCD, 1.04M dots | 3.2" fully articulating touchscreen, 2.1M dots |
| Mount | Canon EF | Sony E-mount (full-frame) |
| Memory Cards | Dual slots: CompactFlash + SD | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | USB 2.0, mini HDMI, AV out, 3.5mm mic & headphone jacks, N3 remote | USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-size |
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 →