Pentax
Pentax K-3 Mark III 2021
Best for DSLR enthusiasts & outdoor photographers
£1699
list price · used from £856 at eBay
Decision tools · Compare
Pentax K-3 Mark III vs A6000
Quick take: The Pentax K-3 Mark III has the highest resolution at 26MP; the A6000 is the most affordable; only the Pentax K-3 Mark III is weather sealed.
16 specs side by side·14 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.
Sony
A6000 2014
Best for Entry-level mirrorless & budget E-mount
£249
list price · used from £127 at eBay
Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more
Verdictwhich should you buy?
Pentax K-3 Mark III — Dslr Enthusiasts & Outdoor Photographers: The finest APS-C DSLR ever made — class-leading weather sealing, optical viewfinder, 5-axis IBIS, and extraordinary build for photographers committed to DSLR.
A6000 — Entry-Level Mirrorless & Budget E-Mount: The Sony that started a generation of E-mount loyalty — 11fps, 24MP, and 179 phase-detect points in a compact body that remained excellent value for nearly a decade.
Who should buy what
Pentax K-3 Mark III (2021)
is the right camera for you if…
- 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
A6000 (2014)
is the right camera for you if…
- First-time mirrorless buyers who want a capable, proven body at the lowest price
- Sony E-mount users who want a compact backup or second body
- Parents and travellers who want good image quality without a large camera
- Anyone curious about APS-C mirrorless who wants to try the system affordably
Full specificationsthe better value in each row is highlighted
| Specification | Pentax K-3 Mark IIIPentax · 2021 | A6000Sony · 2014 |
|---|---|---|
| Price | £1,699 | £249Best |
| Sensor | 25.7MP APS-C BSI CMOS (AA-filterless) | 24.3MP APS-C Exmor APS HD CMOS |
| Resolution | 25.7MPBest | 24.3MP |
| Video | 4K/30p, 1080p/60p | 1080p/60p |
| Autofocus | SAFOX 13 phase-detect, 101-point (25 cross-type) | 179 phase-detect + 25 contrast-detect AF points |
| Stabilisation | 5.5-stop 5-axis IBIS (Shake Reduction III) | No stabilisation |
| Burst Rate | 12fpsBest | 11fps |
| Battery Life | 800 shots (CIPA)Best | ~360 shots (CIPA) |
| Weight | 820g (body only) | 344g (with battery and card)Best |
| Dimensions | 134.5 × 103.5 × 73.5mm | 119.9 × 66.9 × 45.1mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | Optical pentaprism, 100% coverage, 1.05× magnification | EVF, OLED 1.44M dots, 0.70× magnification |
| Screen | 3.2" fixed touchscreen | 3.0" tilting LCD, 921k dots (no touch) |
| Mount | Pentax KF-mount | Sony E-mount |
| Memory Cards | Dual SD UHS-II | Single SD UHS-I slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB, Wi-Fi, 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
Pentax K-3 Mark III
A6000
Portrait
6.6/10
6.3/10
Street
5.2/10
7.6/10
Travel
5.5/10
6.7/10
Wedding & Events
7.0/10
4.6/10
Filmmaking
5.4/10
—
Documentary
6.4/10
4.0/10
Sports & Action
6.8/10
6.2/10
Landscape
6.2/10
4.8/10
Wildlife
6.8/10
6.7/10
Casual
4.3/10
4.4/10
Food
5.4/10
5.5/10
Macro
4.9/10
5.0/10
Architecture
6.0/10
5.2/10
Astrophotography
6.5/10
4.6/10
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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