KFvs FX3
Sony
FX3 (2021)
Starting from £3799 new
Best for Professional video, documentary & cinematic filmmaking
View FX3
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.
Professional Video, Documentary & Cinematic Filmmaking — FX3 (2021): The definitive run-and-gun cinema camera — A7S III sensor quality in a body built specifically for video professionals.
Who should buy what
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
FX3 (2021)
- Professional videographers and filmmakers who need cinema-quality colour science in a compact body
- Documentary and run-and-gun shooters who need 4K/120p and built-in XLR audio
- Sony A7S III owners who want a purpose-built video body alongside their stills camera
- Gimbal and drone operators who need a compact full-frame cinema camera
Quick take: The kf has the highest resolution at 24mp; the kf is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | KF (2022) | FX3 (2021) |
|---|---|---|
| Price | £700 | £3,799 |
| Sensor | 24.2MP APS-C CMOS | 12.1MP full-frame BSI Exmor R CMOS (same as A7S III) |
| Resolution | 24.2MP | 12.1MP |
| Video | 1080p/60p | 4K/120p, 4K/60p 10-bit, 12-bit RAW output, S-Log3, S-Cinetone |
| Autofocus | SAFOX 13 phase-detect AF with 11 points | Real-time tracking with subject recognition (human, animal) |
| Stabilisation | In-body Shake Reduction (SR II), up to 5.5 stops | 5-axis IBIS — 5 stops |
| Burst Rate | 6fps | 10fps mechanical, 10fps electronic |
| Battery Life | ~410 shots (CIPA) | ~640 shots (CIPA) |
| Weight | 643g (body only) | 715g body only (with XLR handle) |
| Dimensions | 131.0 × 101.0 × 76.0mm | 129.7 × 78.0 × 84.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Optical pentamirror, 0.95× magnification, ~100% coverage | None — monitor/external EVF use only |
| Screen | 3.0" fully articulating touchscreen, 1.04M dots | 3.0" touchscreen, fully articulating |
| Mount | Pentax KF-mount | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single SD UHS-I slot | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | USB, Wi-Fi, Bluetooth | USB-C (10Gbps), full-size HDMI, XLR via handle, Bluetooth, Wi-Fi |
Suitability by genre
| Genre | KF | FX3 |
|---|---|---|
| Landscape | — | |
| Travel | ||
| Portrait | ||
| Wildlife | — | |
| Casual | — | |
| Street | ||
| Vlogging & Video | ||
| Sports & Action | — | |
| Low Light | — | |
| Wedding | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history