Sigma fp Lvs A7S II
Sigma
Sigma fp L (2021)
Starting from £1999 new
Best for High-resolution creative & documentary shooters
View Sigma fp L
Sony
A7S II (2015)
Starting from £799 new
Best for Low-light video, documentary & available-light filmmaking
View A7S II
GearScore™ Verdict — Which should you buy?
High-Resolution Creative & Documentary Shooters — Sigma fp L (2021): 61MP and phase-detect AF in the world's smallest full-frame body — the fp L is the most capable iteration of Sigma's extraordinary compact.
Low-Light Video, Documentary & Available-Light Filmmaking — A7S II (2015): A landmark in mirrorless history — the first Sony with IBIS and internal 4K, its low-light video capability still impresses today at a used-market price.
Who should buy what
Sigma fp L (2021)
- Commercial photographers who want 61MP in the world's smallest full-frame body
- Filmmakers using the fp L as a high-resolution cinema camera
- fp owners who need more resolution for large-format printing
- L-mount photographers who want extreme resolution in an ultra-compact form
A7S II (2015)
- Filmmakers and videographers who want legendary low-light performance at a used-price discount
- Documentary shooters working in unpredictable available light conditions
- A7S III shooters who want a second Sony FE body for backup or B-camera use
- Budget-conscious video producers who want full-frame 4K with S-Log at an accessible price
Quick take: The sigma fp l has the highest resolution at 61mp; the a7s ii is the most affordable; only the a7s ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Sigma fp L (2021) | A7S II (2015) |
|---|---|---|
| Price | £1,999 | £799 |
| Sensor | 61MP full-frame BSI CMOS | 12.1MP full-frame BSI Exmor CMOS |
| Resolution | 61.0MP | 12.1MP |
| Video | 12-bit Cinema DNG RAW, 4K/24p | 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3 |
| Autofocus | Phase-detect AF with face/eye detection | 169 phase-detect + 25 contrast AF — limited by modern standards |
| Stabilisation | None (lens-based only) | 5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS) |
| Burst Rate | 18fps electronic | 5fps continuous |
| Battery Life | 200 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 427g body only | 584g body only |
| Dimensions | 112.6 × 69.9 × 45.3mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | No | Yes |
| Viewfinder | None (optional clip-on EVF available) | EVF, 2.36M dots, 0.71× magnification |
| Screen | 3.15" fixed touchscreen | 3.0" tilting LCD, 1.23M dots |
| Mount | Leica L-mount | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single SD UHS-II | Dual SD UHS-I slots |
| Connectivity | USB-C 3.1, Wi-Fi, Bluetooth | USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | Sigma fp L | A7S II |
|---|---|---|
| Street | ||
| Landscape | — | |
| Portrait | ||
| Vlogging & Video | ||
| Travel | — | |
| Sports & Action | — | |
| Low Light | — | |
| Wedding | — | |
| Sports | — |
More comparisons with Sigma fp L
Camera family history