Decision tools · Compare
KF vs A6400
Quick take: The KF is the most affordable.
16 specs side by side·16 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.
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Verdictwhich should you buy?
KF — Landscape & Outdoor: 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.
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
KF (2022)
is the right camera for you if…
- 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
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 | KFPentax · 2022 | A6400Sony · 2019 |
|---|---|---|
| Price | £849 | £749Best |
| Sensor | 24.2MP APS-C CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.2MP | 24.2MP |
| Video | 1080p/60p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | SAFOX 13 phase-detect AF with 11 points | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | In-body Shake Reduction (SR II), up to 5.5 stops | No stabilisation |
| Burst Rate | 6fps | 11fps mechanical, 8fps with AF trackingBest |
| Battery Life | ~410 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 643g (body only) | 403g (with battery and card)Best |
| Dimensions | 131.0 × 101.0 × 76.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Optical pentamirror, 0.95× magnification, ~100% coverage | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fully articulating LCD, 1.04M dots (no touch) | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Pentax KF-mount | Sony E-mount |
| Memory Cards | Single SD UHS-I slot | Single SD UHS-I |
| Connectivity | USB, Wi-Fi, Bluetooth | Micro-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
KF
A6400
Portrait
6.1/10
6.7/10
Street
5.5/10
7.3/10
Travel
5.5/10
6.9/10
Wedding & Events
5.0/10
5.6/10
Vlogging & Video
4.5/10
6.0/10
Documentary
5.0/10
6.1/10
Sports & Action
5.3/10
6.9/10
Landscape
6.1/10
5.6/10
Wildlife
6.0/10
7.4/10
Casual
4.3/10
5.8/10
Food
5.9/10
6.1/10
Macro
5.4/10
5.2/10
Architecture
6.0/10
5.5/10
Astrophotography
4.8/10
6.0/10
Fun & simple
3.1/10
—
Filmmaking
—
5.1/10
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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