Compare · 4 of 4 products
Sony a1 IIvsCanon EOS R5 Mark IIvsNikon Z9vsCanon EOS R8
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- ×
Sony12of 27 specs better - ×
Canon8of 27 specs better - MOST WINS×
Nikon13of 27 specs better - ×
Canon7of 27 specs better
Biggest differences
Viewfinder resolution
Sony a1 II leads
4×
higher is better
- Sony a1 II9.44 M dots
- Canon EOS R5 Mark II5.76 M dots
- Nikon Z93.69 M dots
- Canon EOS R82.36 M dots
Weight
Canon EOS R8 leads
2.91×
lower is better
- Sony a1 II743 g
- Canon EOS R5 Mark II746 g
- Nikon Z91,340 g
- Canon EOS R8461 g
Max mechanical shutter speed
Nikon Z9 leads
8×
higher is better
- Sony a1 II8,000 1/s
- Canon EOS R5 Mark II8,000 1/s
- Nikon Z932,000 1/s
- Canon EOS R84,000 1/s
Effective pixels
Sony a1 II leads
2.07×
higher is better
- Sony a1 II50.1 MP
- Canon EOS R5 Mark II45 MP
- Nikon Z945.7 MP
- Canon EOS R824.2 MP
Features not all of them have
High resolution pixel-shift modeonly Sony a1 II
- ✓
- ?
- ✕
- ✕
Where each one wins
Sony a1 II
- High resolution pixel-shift mode
- Effective pixels
- In-body image stabilization
- Pre-burst capture duration
- Max video resolution
- Viewfinder resolution
- Viewfinder magnification
- Screen size
- Screen articulation
- Rear screen resolution
- Memory card slots
- HDMI port type
Canon EOS R5 Mark II
- In-body image stabilization
- Sensor type
- Continuous shooting (mechanical)
- Max video resolution
- Raw video recording
- Rear screen resolution
- Memory card slots
- HDMI port type
Nikon Z9
- Launch price
- Sensor type
- Max mechanical shutter speed
- Pre-burst capture duration
- Max video resolution
- 4K max frame rate
- Raw video recording
- Screen size
- Rear screen resolution
- Battery life
- Memory card slots
- Minimum operating temperature
- HDMI port type
Canon EOS R8
- Native ISO maximum
- Continuous shooting (electronic)
- 4K max frame rate (full width)
- Weight
- Width
- Height
- Depth
What all 4 have
- Sensor formatFull-frame
- Video bit depth10 bit
- Log profile support✓
- Weather sealingDust and drip resistant
- USB charging & power delivery✓
- Headphone port✓
Every spec
Red marks the better value in each row.
Overview
Sensor & Image
Effective pixels
- 50.1 MP
- 45 MP
- 45.7 MP
- 24.2 MP
Sensor format
- Full-frame
- Full-frame
- Full-frame
- Full-frame
Native ISO maximum
- 32,000 ISO
- Not published
- 25,600 ISO
- 102,400 ISO
Sensor readout speed
- Not published
- Not published
- Not published
- Not published
Sensor type
- —
- Stacked CMOS
- Stacked CMOS
- CMOS
Aspect ratios
- 3:2
- 3:2, 4:3, 1:1, 16:9
- —
- 3:2, 4:3, 1:1, 16:9
Lens & Autofocus
Continuous shooting (mechanical)
- 10 fps
- 12 fps
- Not published
- 6 fps
Continuous shooting (electronic)
- 30 fps
- 30 fps
- 20 fps
- 40 fps
Max mechanical shutter speed
- 8,000 1/s
- 8,000 1/s
- 32,000 1/s
- 4,000 1/s
AF subject detection
- Human, animal, bird, insect, car, train, airplane
- Human, animal, bird, car, train, airplane, motorcycle
- Human, animal, bird, car, train, airplane, motorcycle
- Human, animal, bird, car, train, airplane, motorcycle
Video
Max video resolution
- 8K
- 8K
- 8K
- 4K
4K max frame rate
- 119.88 fps8
- —
- 120 fps
- 60 fps
Video codecs
- H.264, HEVC
- HEVC, ProRes RAW, Cinema RAW Light, XF-AVC9
- H.264, HEVC, ProRes 422 HQ, ProRes RAW, N-RAW
- H.264, HEVC
4K max frame rate (full width)
- 59.94 fps10
- 59.94 fps
- 30 fps
- 60 fps
Raw video recording
- External11
- Internal
- Internal
- None
Video bit depth
- 10 bit
- 10 bit
- 10 bit
- 10 bit
Log profile support
- Yes
- Yes
- Yes
- Yes
Video dynamic range (log)
- Not published
- Not published
- Not published
- Not published
Viewfinder & Screen
Viewfinder resolution
- 9.44 M dots
- 5.76 M dots
- 3.69 M dots
- 2.36 M dots
Viewfinder magnification
- 0.9 x
- 0.76 x
- 0.8 x
- 0.7 x
Screen size
- 3.2 in
- Not published
- 3.2 in
- 3 in
Screen articulation
- Multi-angle
- Fully articulated
- Tilting
- Fully articulated
Rear screen resolution
- 2.1 M dots
- 2.1 M dots
- 2.1 M dots
- 1.62 M dots
Handling & Power
Battery life
- 520 shots12
- 630 shots
- 740 shots
- 370 shots
Memory card slots
- 2 slots
- 2 slots
- 2 slots
- 1 slots
Weather sealing
- Dust and drip resistant13
- Dust and drip resistant
- Dust and drip resistant
- Dust and drip resistant
Weight
- 743 g
- 746 g
- 1,340 g
- 461 g
Width
- 136.1 mm
- 138.5 mm
- 149 mm
- 132.5 mm
Height
- 96.9 mm
- 101.2 mm
- 149.5 mm
- 86.1 mm
Depth
- 82.9 mm14
- 93.5 mm
- 90.5 mm
- 70 mm
USB charging & power delivery
- Yes
- Yes
- Yes
- Yes
Minimum operating temperature
- 0 °C
- 0 °C
- -10 °C
- 0 °C
Headphone port
- Yes
- Yes
- Yes
- Yes
HDMI port type
- Full-size
- Full-size
- Full-size
- Micro
Notes on 14 values — test conditions and caveats
- 1Sony a1 II, Release date: Announced 19 November 2024; first retail availability was December 2024.
- 2Sony a1 II, High resolution pixel-shift mode: 4- or 16-shot pixel shift composites are merged with Sony's Imaging Edge Desktop PC software.
- 3Sony a1 II, In-body image stabilization: 8.5 stops is the CIPA centre rating; 7.0 stops at the periphery.
- 4Nikon Z9, In-body image stabilization: The 6.0-stop rating requires Synchro VR, combining in-body 5-axis VR with 2-axis lens VR on compatible lenses.
- 5Sony a1 II, Pre-burst capture duration: Pre-capture buffers between 0.03 s and 1 s of frames before full shutter press.
- 6Canon EOS R5 Mark II, Pre-burst capture duration: Up to 15 shots can be buffered before you fully press the shutter, which is about half a second at 30 fps.
- 7Nikon Z9, Pre-burst capture duration: Pre-Release Capture is only available in the C30 and C120 high-speed frame capture modes.
- 8Sony a1 II, 4K max frame rate: 4K 100p/120p recording uses a 1.1x crop.
- 9Canon EOS R5 Mark II, Video codecs: Internal codecs are XF-HEVC S, XF-AVC S and H.264 MP4; ProRes RAW is recorded via HDMI to an external recorder.
- 10Sony a1 II, 4K max frame rate (full width): Full-width 4K tops out at 59.94p; 4K 100/120p requires a 1.1x crop.
- 11Sony a1 II, Raw video recording: 16-bit RAW video can only be output over HDMI to an external recorder; no internal RAW recording.
- 12Sony a1 II, Battery life: CIPA rating is 520 shots per charge on the rear LCD; 420 shots with the viewfinder.
- 13Sony a1 II, Weather sealing: Sony specifies dust- and moisture-resistant sealing; no formal IP rating is published.
- 14Sony a1 II, Depth: Sony also lists 72.8 mm depth measured from grip to monitor, excluding the grip protrusion.
Where to buy
Sony a1 II
Canon EOS R5 Mark II
Nikon Z9
Canon EOS R8











