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Pentax 17vs A9

GearFrame · Updated March 2026

Pentax Pentax 17 Pentax Pentax 17 (2024) Starting from £400 new Best for Film photography enthusiasts & diptych storytelling View Pentax 17
VS
Sony A9 Sony A9 (2017) Starting from £1999 new Best for Professional sports, wildlife & action photography View A9

GearScore™ Verdict — Which should you buy?

Film Photography Enthusiasts & Diptych Storytelling — Pentax 17 (2024): The best new film camera of the decade — manual controls, a sharp lens, and a half-frame format that doubles your roll and forces a new way of seeing.

Professional Sports, Wildlife & Action Photography — A9 (2017): The camera that changed professional photography — the A9's 20fps blackout-free burst and silent shutter proved mirrorless had definitively surpassed the DSLR.

↓ Full specifications below

A9 (2017)

  • Sports photographers who want the original 20fps mirrorless at a lower used price than the A9 II
  • Wildlife photographers who need blackout-free burst with fast, reliable tracking
  • Sony FE system users who want a professional sports body
  • Photographers interested in the camera that changed the industry

Quick take: The pentax 17 is the most affordable; only the a9 is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Pentax 17 (2024)A9 (2017)
Price £400 £1,999
Sensor 35mm half-frame (18 × 24mm) 24.2MP Full-Frame Stacked BSI CMOS Exmor RS
Resolution 24.2MP
Video N/A — film camera 4K/30p, 1080p/120p
Autofocus Zone focus (0.35m / 1m / 3m / ∞) 693 phase-detect + 25 contrast-detect, real-time eye/body tracking
Stabilisation N/A — film camera IBIS — 5-axis, up to 5 stops
Burst Rate Manual wind-on 20fps (blackout-free, silent electronic shutter with full AF/AE)
Battery Life 2× CR2 lithium batteries ~650 shots (CIPA)
Weight ~165g (without batteries) 673g (with battery and card)
Dimensions 113 × 66 × 44mm 126.9 × 95.6 × 63.0mm
Weather Sealed No Yes
Viewfinder Optical viewfinder with half-frame framelines EVF, OLED 3.69M dots, 0.78× magnification, 60fps refresh (blackout-free)
Screen N/A 3.0" tilting touchscreen
Mount 35mm film (ISO 25–3200 via DX coding + manual dial) Sony FE (full-frame E-mount)
Memory Cards 35mm 135-format film cartridge Dual SD UHS-II slots
Connectivity N/A USB, Wi-Fi 5GHz, Bluetooth, HDMI
Genre Pentax 17A9
Street
9.0
Travel
9.0
7.0
Portrait
7.0
9.0
Everyday
9.0
Landscape
7.0
Low Light
4.0
Sports & Action
9.0
Wildlife
9.0
Wedding & Events
9.0
Vlogging & Video
4.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side Pentax 17 prices → A9 prices →

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