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Nikon Z9 vs Sony a9 II

The Nikon Z9 and the Sony a9 II side by side, computed from this guide's catalogue.

Which to pick

Pick the Nikon Z9 if you want more resolution, for cropping and big prints (45.7 against 24.2 MP) and a newer model (2021 against 2019), which usually means better autofocus and video. Pick the Sony a9 II if you want more lenses made for it in this guide (278 against 153) and a lighter body (678 g against 1340 g). If you already own Nikon Z or Sony E lenses, the camera on that mount saves you buying them again.

Still torn? Ask the guide about the Nikon Z9 and the Sony a9 II

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
SpecNikon Z9Sony a9 II
MakerNikonSony
MountNikon ZSony E
SensorFull frame, 36 x 24 mmFull frame, 36 x 24 mm
Crop factor1×1×
Resolution45.7 MPmore detail24.2 MP
Stabilisationin the bodyin the body
Announced20212019
Typemirrorless cameramirrorless camera
Weight1340 g678 glighter
Lenses in this guide153 for its sensor, 80 more with a crop278 for its sensor, 125 more with a cropmore lenses

Sensor size

Both camerasFull frame36 × 24 mmCrop factor 1×
Both sensors drawn to the same scale.

Crop factors: Nikon Z9 1×, Sony a9 II 1×.

What a 50mm frames like

Both have the same sensor size, so a 50mm lens frames the same on each: like 50mm on full frame.

50mm on either · 40°
Horizontal angle of view on each.

Lenses

Different mounts (Nikon Z and Sony E): a lens for one does not fit the other without an adapter. 112 lens designs in this guide are made in both mounts, mostly from third-party makers.

The Nikon Z9: 153 Nikon Z lenses in this guide cover its sensor. The Sony a9 II: 278 Sony E lenses in this guide cover its sensor.

On their own pages