Upgrade Guide

Pentax Pentax K-3 Mark III→Pentax Pentax 17

Is it worth upgrading? Spec analysis, key improvements, and our verdict.

Pentax K-3 Mark III
You own
Pentax
Pentax K-3 Mark III
£1699
2021
View on GearFrame →
→
Pentax 17
Upgrade to
Pentax
Pentax 17
£400 (-£1,299)
2024
View on GearFrame →
⚖️
Situational
One clear hardware improvement over the Pentax K-3 Mark III. Worth it if that specific upgrade aligns with what you shoot.
What's new in the Pentax 17
Unchanged or similar
Suitability by genre

Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.

Genre Pentax K-3 Mark III Pentax 17
Portrait
6.6
7.0
+0.4
Street
5.2
4.0
-1.2
Travel
5.5
9.0
+3.5
Wedding & Events
7.0
—
Filmmaking
5.4
—
Documentary
6.4
—
Sports & Action
6.8
—
Landscape
6.2
7.0
+0.8
Wildlife
6.8
—
Casual
4.3
9.0
+4.7
Food
5.4
—
Macro
4.9
—
Architecture
6.0
—
Astrophotography
6.5
—
Full spec comparison
Spec Pentax K-3 Mark III Pentax 17
Price £1,699 £400
Released 2021 2024 ↑
Sensor 25.7MP APS-C BSI CMOS (AA-filterless) 35mm half-frame (18 × 24mm)
Resolution 26MP —
Video 4K/30p, 1080p/60p N/A — film camera
Autofocus SAFOX 13 phase-detect, 101-point (25 cross-type) Zone focus (0.35m / 1m / 3m / ∞)
Stabilisation 5.5-stop 5-axis IBIS (Shake Reduction III) N/A — film camera
Burst Rate 12fps Manual wind-on
Battery Life 800 shots (CIPA) 2× CR2 lithium batteries ↓
Weight 820g (body only) ~165g (without batteries) ↑
Weather Sealed Yes Not weather sealed ↓
Viewfinder Optical pentaprism, 100% coverage, 1.05× magnification Optical viewfinder with half-frame framelines
Screen 3.2" fixed touchscreen No screen
Mount Pentax KF-mount 35mm film (ISO 25–3200 via DX coding + manual dial)
Memory Cards Dual SD UHS-II 35mm 135-format film cartridge
Compare side-by-side

See Pentax K-3 Mark III and Pentax 17 next to each other with our interactive comparison tool.

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Get a personalised upgrade score

Tell us what you shoot and we'll score the Pentax 17 against your specific genres — not just specs.

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