EOS R7vs Z7 IIvs Pentax K-3 Mark III

GearFrame · Updated March 2026

Canon EOS R7 Canon EOS R7 (2022) From £1399 Best for Wildlife, sports & action View EOS R7
VS
Nikon Z7 II Nikon Z7 II (2020) From £2699 Best for Landscape & studio / high-resolution View Z7 II
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) From £1699 Best for DSLR enthusiasts & outdoor photographers View Pentax K-3 Mark III

Which should you buy?

Wildlife, Sports & Action — EOS R7 (2022): The EOS R7 is one of the most complete APS-C cameras ever made. It combines a class-leading resolution sensor with best-in-class IBIS, 4K/60p video, weather sealing and 15fps burst. For wildlife, sports and action photographers on an APS-C budget, nothing else comes close.

Landscape & Studio / High-Resolution — Z7 II (2020): The Z7 II is a landscape and studio camera first, everything else second. 45.7MP with weather sealing and dual card slots is a compelling package. If you need resolution, it delivers. If you don't, the Z6 II is the smarter 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.

↓ Full specifications below

EOS R7 (2022)

  • Wildlife photographers who need reach, weather sealing and fast burst
  • Sports shooters upgrading from entry-level APS-C bodies
  • Video creators who need uncropped 4K/60p without a full-frame budget
  • Canon DSLR users looking to move to RF mount

Z7 II (2020)

  • Landscape photographers who print large or need to crop significantly
  • Studio and commercial photographers requiring maximum resolution
  • Architecture photographers where detail is non-negotiable
  • Fine-art photographers who shoot primarily from a tripod

Pentax K-3 Mark III (2021)

  • You're a committed DSLR photographer with significant investment in Pentax glass
  • You shoot in extreme weather conditions and place build quality and reliability above everything
  • You prefer optical viewfinder performance and want the best modern APS-C DSLR available

Quick take: The z7 ii has the highest resolution at 46mp; the eos r7 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification EOS R7 (2022)Z7 II (2020)Pentax K-3 Mark III (2021)
Price £1,399 £2,699 £1,699
Sensor 32.5MP APS-C CMOS 45.7MP Full-Frame BSI CMOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 32.5MP 45.7MP 25.7MP
Video 4K/60p (uncropped), 4K/30p (oversampled from 7K), 1080p/120p 4K/60p, 4K/30p (oversampled), 1080p/120p slow-motion 4K/30p, 1080p/60p
Autofocus Dual Pixel CMOS AF II, 651 AF zones, subject recognition (people, animals, vehicles) Phase-detect, 493 points, Eye AF, subject tracking SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation 7-stop IBIS (8 stops with compatible IS lenses) 5-axis IBIS, 5 stops (up to 6 stops with VR lenses) 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 15fps mechanical, 30fps electronic (with blackout) 10fps mechanical, 10fps electronic 12fps
Battery Life ~770 shots (CIPA) ~420 shots (CIPA) 800 shots (CIPA)
Weight 612g (body, battery, card) 705g (body, battery, card) 820g body only
Dimensions 132.0 × 90.4 × 91.7mm 134.0 × 100.5 × 69.5mm 134.5 × 103.5 × 73.5mm
Weather Sealed Yes Yes Yes
Viewfinder EVF, 2.36M dots, 0.72× magnification EVF, 3.69M dots, 0.80× magnification Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.0" vari-angle touchscreen, 1.62M dots 3.2" tilting touchscreen, 2.1M dots 3.2" tilting touchscreen
Mount Canon RF-mount Nikon Z-mount Pentax KF-mount
Memory Cards Dual SD UHS-II Dual card: 1× CFexpress Type B / XQD + 1× SD UHS-II Dual SD UHS-II
Connectivity USB-C (USB 3.2 Gen 2), Wi-Fi, Bluetooth USB-C (USB 3.2 Gen 2), Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side EOS R7 prices → Z7 II prices → Pentax K-3 Mark III prices →

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