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Sigma fp Lvs A9

GearFrame · Updated March 2026

Sigma Sigma fp L Sigma Sigma fp L (2021) Starting from £1999 new Best for High-resolution creative & documentary shooters View Sigma fp L
VS
Sony A9 Sony A9 (2017) Starting from £1999 new Best for Professional sports, wildlife & action photography View A9

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.

Professional Sports, Wildlife & Action Photography — A9 (2017): The camera that changed professional photography — the A9's 20fps blackout-free burst and silent shutter proved mirrorless had definitively surpassed the DSLR.

↓ Full specifications below

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

A9 (2017)

  • Sports photographers who want the original 20fps mirrorless at a lower used price than the A9 II
  • Wildlife photographers who need blackout-free burst with fast, reliable tracking
  • Sony FE system users who want a professional sports body
  • Photographers interested in the camera that changed the industry

Quick take: The sigma fp l has the highest resolution at 61mp; only the a9 is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Sigma fp L (2021)A9 (2017)
Price £1,999 £1,999
Sensor 61MP full-frame BSI CMOS 24.2MP Full-Frame Stacked BSI CMOS Exmor RS
Resolution 61.0MP 24.2MP
Video 12-bit Cinema DNG RAW, 4K/24p 4K/30p, 1080p/120p
Autofocus Phase-detect AF with face/eye detection 693 phase-detect + 25 contrast-detect, real-time eye/body tracking
Stabilisation None (lens-based only) IBIS — 5-axis, up to 5 stops
Burst Rate 18fps electronic 20fps (blackout-free, silent electronic shutter with full AF/AE)
Battery Life 200 shots (CIPA) ~650 shots (CIPA)
Weight 427g body only 673g (with battery and card)
Dimensions 112.6 × 69.9 × 45.3mm 126.9 × 95.6 × 63.0mm
Weather Sealed No Yes
Viewfinder None (optional clip-on EVF available) EVF, OLED 3.69M dots, 0.78× magnification, 60fps refresh (blackout-free)
Screen 3.15" fixed touchscreen 3.0" tilting touchscreen
Mount Leica L-mount Sony FE (full-frame E-mount)
Memory Cards Single SD UHS-II Dual SD UHS-II slots
Connectivity USB-C 3.1, Wi-Fi, Bluetooth USB, Wi-Fi 5GHz, Bluetooth, HDMI
Genre Sigma fp LA9
Street
9.0
Landscape
9.0
Portrait
9.0
9.0
Vlogging & Video
7.0
4.0
Travel
7.0
7.0
Sports & Action
4.0
9.0
Wildlife
9.0
Wedding & Events
9.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side Sigma fp L prices → A9 prices →

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