Decision tools · Compare

fp L vs A6400

Quick take: The fp L has the highest resolution at 61MP; the A6400 is the most affordable.

16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras

How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.

Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more

Verdictwhich should you buy?

fp L — High-Resolution Creative & Documentary Shooters: 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.

A6400 — Content Creation & Vlogging: The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.

Who should buy what
fp L (2021)
is the right camera for you if…
  • 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
A6400 (2019)
is the right camera for you if…
  • Vloggers and content creators who need a flip screen and reliable AF
  • Photographers upgrading from a compact or smartphone
  • Beginners who want room to grow into a full E-mount lens ecosystem
  • Anyone prioritising autofocus performance at an accessible price
Full specificationsthe better value in each row is highlighted
Specification fp LSigma · 2021A6400Sony · 2019
Price £1,999£749Best
Sensor 61MP full-frame BSI CMOS24.2MP APS-C Exmor CMOS BSI
Resolution 61.0MPBest24.2MP
Video 12-bit CinemaDNG RAW, 4K/30p4K/30p (6K oversampled, no crop), 1080p/120p slow-motion
Autofocus Phase-detect AF with face/eye detectionPhase-detect, 425 points, real-time Eye AF & animal AF
Stabilisation None (lens-based only)No stabilisation
Burst Rate 18fps electronicBest11fps mechanical, 8fps with AF tracking
Battery Life 200 shots (CIPA)~410 shots (CIPA)Best
Weight 427g (body only)403g (with battery and card)Best
Dimensions 112.6 × 69.9 × 45.3mm120.0 × 66.9 × 59.7mm
Weather Sealed YesYes
Viewfinder None (optional clip-on EVF available)EVF, 2.36M dots, 0.70× magnification
Screen 3.15" fixed touchscreen3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots
Mount Leica L-mountSony E-mount
Memory Cards Single SD UHS-IISingle SD UHS-I
Connectivity USB-C 3.1, Wi-Fi, BluetoothMicro-USB, Wi-Fi, Bluetooth, NFC

Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.

How they score by genreengine base scores out of 10
Genre
fp L
A6400
Portrait
6.7/10
6.7/10
Street
6.9/10
7.3/10
Travel
6.7/10
6.9/10
Wedding & Events
4.9/10
5.6/10
Filmmaking
5.3/10
5.1/10
Documentary
6.2/10
6.1/10
Sports & Action
6.7/10
6.9/10
Landscape
6.9/10
5.6/10
Wildlife
7.0/10
7.4/10
Casual
5.1/10
5.8/10
Food
6.2/10
6.1/10
Macro
5.3/10
5.2/10
Architecture
6.6/10
5.5/10
Astrophotography
5.5/10
6.0/10
Vlogging & Video
—
6.0/10

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 →

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