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KFvs Sigma fp

GearFrame · Updated March 2026

Pentax KF Pentax KF (2022) Starting from £700 new Best for Landscape & Outdoor View KF
VS
Sigma Sigma fp Sigma Sigma fp (2019) Starting from £1499 new Best for Creative filmmakers & experimental photographers View Sigma fp

GearScore™ Verdict — Which should you buy?

Landscape & Outdoor — KF (2022): The Pentax KF is a rare thing — a weather-sealed DSLR with in-body stabilisation and an articulating screen at an accessible price. Video is modest at 1080p/60p, but for outdoor and landscape photographers who prefer optical viewfinders and want real weather sealing, the KF delivers in a format that is increasingly hard to find.

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.

↓ Full specifications below

KF (2022)

  • Outdoor and landscape photographers who want weather sealing at an accessible price
  • DSLR users who want IBIS and an articulating screen without switching systems
  • Pentax K-mount lens collectors who want a modern body for their glass
  • Photographers who prefer the natural feel of an optical viewfinder

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

Quick take: The sigma fp has the highest resolution at 25mp; the kf is the most affordable; only the kf is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification KF (2022)Sigma fp (2019)
Price £700 £1,499
Sensor 24.2MP APS-C CMOS 24.6MP full-frame Bayer CMOS
Resolution 24.2MP 24.6MP
Video 1080p/60p 12-bit Cinema DNG RAW, 4K/24p, 1080p/120p
Autofocus SAFOX 13 phase-detect AF with 11 points Contrast-detect AF with face/eye detection
Stabilisation In-body Shake Reduction (SR II), up to 5.5 stops None (lens-based only)
Burst Rate 6fps 18fps electronic
Battery Life ~410 shots (CIPA) 200 shots (CIPA)
Weight 643g (body only) 422g body only
Dimensions 131.0 × 101.0 × 76.0mm 112.6 × 69.9 × 45.3mm
Weather Sealed Yes No
Viewfinder Optical pentamirror, 0.95× magnification, ~100% coverage None
Screen 3.0" fully articulating touchscreen, 1.04M dots 3.15" fixed touchscreen
Mount Pentax KF-mount Leica L-mount
Memory Cards Single SD UHS-I slot Single SD UHS-II + CFexpress Type B (via adapter)
Connectivity USB, Wi-Fi, Bluetooth USB-C 3.1, Wi-Fi, Bluetooth
Genre KFSigma fp
Landscape
8.5
7.0
Travel
8.0
9.0
Portrait
7.5
7.0
Wildlife
7.5
Casual
7.5
Street
6.0
9.0
Vlogging & Video
4.5
9.0
Sports & Action
6.0
4.0

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

⚡ Compare specs side by side KF prices → Sigma fp prices →

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