Sigma fpvs A7R IV
Sigma
Sigma fp (2019)
Starting from £1499 new
Best for Creative filmmakers & experimental photographers
View Sigma fp
VS
GearScore™ Verdict — Which should you buy?
Creative Filmmakers & Experimental Photographers — Sigma fp (2019): The smallest full-frame camera in the world — Cinema DNG RAW and L-mount flexibility in a pocket-sized body that rewards creative shooters.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
Who should buy what
Sigma fp (2019)
- Filmmakers who want the world's smallest full-frame camera as a B or C camera
- Experimental photographers who want to build a unique, modular setup
- L-mount photographers who want an ultra-compact full-frame body
- Anyone who wants a conversation-starting camera that delivers serious results
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 sigma fp is the most affordable; only the a7r iv is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Sigma fp (2019) | A7R IV (2019) |
|---|---|---|
| Price | £1,499 | £2,199 |
| Sensor | 24.6MP full-frame Bayer CMOS | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 24.6MP | 61.0MP |
| Video | 12-bit Cinema DNG RAW, 4K/24p, 1080p/120p | 4K 30fps |
| Autofocus | Contrast-detect AF with face/eye detection | 567-point phase-detect, real-time tracking |
| Stabilisation | None (lens-based only) | 5-axis IBIS, 5.5 stops |
| Burst Rate | 18fps electronic | 10fps |
| Battery Life | 200 shots (CIPA) | 670 shots (CIPA) |
| Weight | 422g body only | 665g (body only) |
| Dimensions | 112.6 × 69.9 × 45.3mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | No | Yes |
| Viewfinder | None | EVF 0.78× 5.76M-dot |
| Screen | 3.15" fixed touchscreen | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Leica L-mount | Sony E-Mount |
| Memory Cards | Single SD UHS-II + CFexpress Type B (via adapter) | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB-C 3.1, Wi-Fi, Bluetooth | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
Suitability by genre
| Genre | Sigma fp | A7R IV |
|---|---|---|
| Vlogging & Video | — | |
| Street | — | |
| Travel | — | |
| Portrait | — | |
| Landscape | — | |
| Sports & Action | — |
More comparisons with Sigma fp
Camera family history