A7R IIIvs A7R IV
Sony
A7R III (2017)
Starting from £1799 new
Best for Landscape, studio & commercial photography
View A7R III
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GearScore™ Verdict — Which should you buy?
Landscape, Studio & Commercial Photography — A7R III (2017): The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
Who should buy what
A7R III (2017)
- Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
- Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
- Commercial and product photographers who want full-frame resolution with IBIS for handheld work
- Portrait photographers who want the sharpest possible full-frame files for large print work
A7R IV (2019)
- Landscape photographers who print large
- Studio shooters needing maximum detail
Quick take: The a7r iv has the highest resolution at 61mp; the a7r iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | A7R III (2017) | A7R IV (2019) |
|---|---|---|
| Price | £1,799 | £2,199 |
| Sensor | 42.4MP full-frame BSI Exmor R CMOS | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 42.4MP | 61.0MP |
| Video | 4K/30p (full-frame readout), 1080p/120p | 4K 30fps |
| Autofocus | 399 phase-detect + 425 contrast AF points — real-time Eye AF | 567-point phase-detect, real-time tracking |
| Stabilisation | 5-axis IBIS — 5.5 stops | 5-axis IBIS, 5.5 stops |
| Burst Rate | 10fps with AF/AE tracking | 10fps |
| Battery Life | ~650 shots (CIPA) | 670 shots (CIPA) |
| Weight | 650g body only | 665g (body only) |
| Dimensions | 126.9 × 95.6 × 73.7mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 3.69M dots, 0.78× magnification | EVF 0.78× 5.76M-dot |
| Screen | 3.0" touchscreen, tilting | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Sony FE mount (full-frame E-mount) | Sony E-Mount |
| Memory Cards | Dual SD slots (one UHS-II) | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
Suitability by genre
| Genre | A7R III | A7R IV |
|---|---|---|
| Landscape | — | |
| Portrait | — | |
| Vlogging & Video | — | |
| Wedding | — | |
| Street | — | |
| Sports | — |
More comparisons with A7R III
Camera family history