Pentax 17vs A1

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 A1 Sony A1 (2021) Starting from £5999 new Best for Professional sport, wildlife, portrait & hybrid shooting View A1

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 Sport, Wildlife, Portrait & Hybrid Shooting — A1 (2021): 50MP, 30fps, 8K — the Sony A1 is the most complete professional camera ever made.

↓ Full specifications below

A1 (2021)

  • Professional photographers who need resolution and speed without compromise
  • Sports and wildlife photographers demanding the absolute fastest Sony
  • Studio and fashion photographers who also shoot sport or events
  • A9 III or A7R V owners who want a single body that does everything

Quick take: The pentax 17 is the most affordable; only the a1 is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Pentax 17 (2024)A1 (2021)
Price £400 £5,999
Sensor 35mm half-frame (18 × 24mm) 50.1MP Full-Frame Stacked BSI CMOS Exmor RS
Resolution 50.1MP
Video N/A — film camera 8K/30p, 4K/120p, 1080p/240p
Autofocus Zone focus (0.35m / 1m / 3m / ∞) Real-time Tracking, AI subject recognition — 759 phase-detect points
Stabilisation N/A — film camera IBIS — up to 5.5 stops
Burst Rate Manual wind-on 30fps electronic with full AF/AE
Battery Life 2× CR2 lithium batteries ~430 shots (CIPA)
Weight ~165g (without batteries) 737g (with battery)
Dimensions 113 × 66 × 44mm 128.9 × 96.9 × 80.8mm
Weather Sealed No Yes
Viewfinder Optical viewfinder with half-frame framelines EVF, 9.44M dots, 0.90× magnification, 240fps
Screen N/A 3.0" fully tilting touchscreen
Mount 35mm film (ISO 25–3200 via DX coding + manual dial) Sony FE mount (full-frame E-mount)
Memory Cards 35mm 135-format film cartridge Dual CFexpress Type A / SD UHS-II
Connectivity N/A USB-C, Wi-Fi 5GHz, Bluetooth, Ethernet, HDMI
Genre Pentax 17A1
Street
9.0
Travel
9.0
Portrait
7.0
9.0
Everyday
9.0
Landscape
7.0
9.0
Low Light
4.0
Sports
9.0
Wildlife
9.0
Vlogging & Video
9.0
Wedding
9.0
⚡ Compare specs side by side Pentax 17 prices → A1 prices →

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