Nikon z9 vs sony a1?

Here is what the site says about that.

From Sony a1: Sony a1: A mirrorless camera by Sony with a 50.1-megapixel full frame sensor, announced in 2021. Specs - Maker: Sony - Mount: Sony E - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 50.1 megapixels - Stabilisation: in the body - Announced: 2021 - Type: mirrorless camera Focal lengths on it Full frame is the reference size: lenses frame as marked. A lens made for APS-C works with the ...

From Nikon Z9: Nikon Z9: A mirrorless camera by Nikon with a 45.7-megapixel full frame sensor, announced in 2021. Specs - Maker: Nikon - Mount: Nikon Z - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 45.7 megapixels - Stabilisation: in the body - Announced: 2021 - Type: mirrorless camera Focal lengths on it Full frame is the reference size: lenses frame as marked. A lens made for APS-C works with the ...

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