Pentax K-3 Mark IIIvs A6600
Pentax
Pentax K-3 Mark III (2021)
Starting from £1699 new
Best for DSLR enthusiasts & outdoor photographers
View Pentax K-3 Mark III
Sony
A6600 (2019)
Starting from £1299 new
Best for Hybrid photography, travel & video on Sony APS-C
View A6600
GearScore™ Verdict — Which should you buy?
Dslr Enthusiasts & Outdoor Photographers — Pentax K-3 Mark III (2021): The finest APS-C DSLR ever made — class-leading weather sealing, optical viewfinder, 5-axis IBIS, and extraordinary build for photographers committed to DSLR.
Hybrid Photography, Travel & Video On Sony Aps-C — A6600 (2019): The APS-C Sony that has everything — IBIS, real-time Eye AF, excellent battery life, and 4K/30p in a weather-sealed body.
Who should buy what
Pentax K-3 Mark III (2021)
- DSLR photographers who want the finest APS-C optical viewfinder experience
- Outdoor and weather photographers who need robust all-weather sealing
- Pentax lens owners who want to use their existing K-mount glass
- Photographers who prefer optical viewfinders and refuse to switch to mirrorless
A6600 (2019)
- Sony APS-C shooters who need IBIS — the only A6000-series body to offer it
- Hybrid photographers who want the best of stills and video from a compact E-mount body
- A6400 or A6100 owners who want IBIS and a headphone jack for video work
- Travel photographers who need compact full-featured weather-sealed performance
Quick take: The pentax k-3 mark iii has the highest resolution at 26mp; the a6600 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Pentax K-3 Mark III (2021) | A6600 (2019) |
|---|---|---|
| Price | £1,699 | £1,299 |
| Sensor | 25.7MP APS-C BSI CMOS (AA-filterless) | 24.2MP APS-C Exmor CMOS |
| Resolution | 25.7MP | 24.2MP |
| Video | 4K/30p, 1080p/60p | 4K/30p (no crop), 1080p/120p |
| Autofocus | SAFOX 13 phase-detect, 101-point (25 cross-type) | Real-time Eye AF, real-time tracking — inherited from A9 |
| Stabilisation | 5.5-stop 5-axis IBIS (Shake Reduction III) | 5-axis IBIS — 5 stops |
| Burst Rate | 12fps | 11fps continuous with AF/AE |
| Battery Life | 800 shots (CIPA) | ~810 shots (CIPA) — large NP-FZ100 battery |
| Weight | 820g body only | 503g body only |
| Dimensions | 134.5 × 103.5 × 73.5mm | 120 × 66.9 × 69.3mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Optical pentaprism, 100% coverage, 1.05× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" tilting touchscreen | 3.0" touchscreen, tilting |
| Mount | Pentax KF-mount | Sony E-mount (APS-C) |
| Memory Cards | Dual SD UHS-II | Single SD UHS-I slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Bluetooth, Wi-Fi, 3.5mm mic & headphone jacks |
Suitability by genre
| Genre | Pentax K-3 Mark III | A6600 |
|---|---|---|
| Landscape | — | |
| Wildlife | ||
| Sports & Action | — | |
| Portrait | ||
| Travel | ||
| Vlogging & Video | ||
| Street | — | |
| Sports | — |
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