Pentax K-3 Mark IIIvs A7 II
Pentax
Pentax K-3 Mark III (2021)
Starting from £1699 new
Best for DSLR enthusiasts & outdoor photographers
View Pentax K-3 Mark III
VS
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.
Travel, Portrait — A7 II (2014): The camera that proved full-frame IBIS was possible in a compact 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
A7 II (2014)
- Photographers upgrading from APS-C who want full-frame on a budget
- Film shooters adapting vintage lenses (IBIS helps enormously)
Quick take: The pentax k-3 mark iii has the highest resolution at 26mp; the a7 ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Pentax K-3 Mark III (2021) | A7 II (2014) |
|---|---|---|
| Price | £1,699 | £549 |
| Sensor | 25.7MP APS-C BSI CMOS (AA-filterless) | Full-frame BSI CMOS 35mm |
| Resolution | 25.7MP | 24.3MP |
| Video | 4K/30p, 1080p/60p | 1080p 60fps |
| Autofocus | SAFOX 13 phase-detect, 101-point (25 cross-type) | 117-point phase-detect hybrid AF |
| Stabilisation | 5.5-stop 5-axis IBIS (Shake Reduction III) | 5-axis IBIS, 4.5 stops |
| Burst Rate | 12fps | 5fps |
| Battery Life | 800 shots (CIPA) | 350 shots (CIPA) |
| Weight | 820g body only | 599g (body only) |
| Dimensions | 134.5 × 103.5 × 73.5mm | 126.9 × 95.7 × 59.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Optical pentaprism, 100% coverage, 1.05× magnification | EVF 0.71× 2.36M-dot |
| Screen | 3.2" tilting touchscreen | 3.0" tilting touchscreen, 1.23M-dot |
| Mount | Pentax KF-mount | Sony E-Mount |
| Memory Cards | Dual SD UHS-II | SD / Memory Stick Pro Duo |
| Connectivity | USB-C, Wi-Fi, Bluetooth | Wi-Fi, NFC, Micro USB, Micro HDMI |
Suitability by genre
| Genre | Pentax K-3 Mark III | A7 II |
|---|---|---|
| Landscape | — | |
| Wildlife | — | |
| Sports & Action | — | |
| Portrait | — | |
| Travel | — | |
| Vlogging & Video | — |
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