Nikon Z9 vs Nikon D810A

This is a full comparison between the cameras Nikon Z9 and Nikon D810A. We compare them by looking at the categories you see below.

Nikon Z9

Nikon D810A

Manufacturing

These cameras are both manufactured by Nikon.

Nikon Z9 were released 2021 and Nikon D810A was released 2015. That is a 6 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Nikon Z9	2021
Nikon D810A	2015

Type of camera

Nikon Z9 is a Mirrorless camera while Nikon D810A is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

Both these cameras have the same sorts of sensor (called "Nikon FX") which means that if you compare these cameras side by side the lenses will also have the same experienced focal length. Since both cameras have a Full frame sensor there will be no crop factor.

Camera	Focal length, 50mm f/1.8 **
Nikon Z9	50 mm Full-frame sensor No crop factor/focal length multiplier
Nikon D810A	50 mm Full-frame sensor No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Nikon)

Resolution

Nikon Z9 has a 46 MP (Megapixels) resolution while Nikon D810A has 36 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Nikon Z9	46 MP 45441024 pixels 8256 x 5504
Nikon D810A	36 MP 36152320 pixels 7360 x 4912

Nikon Z9 has a 26 % larger resolution than Nikon D810A. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Nikon Z9 has a larger ISO-range than Nikon D810A. Nikon Z9 has an ISO range that stretches from 32 to 102400 while Nikon D810A has 200 to 12800.

Camera	ISO Range
Nikon Z9	32-102400
Nikon D810A	200-12800

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Nikon Z9
Lens compatibility chart for Nikon D810A

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon Z9 can shoot up to 30 pictures per seconds and Nikon D810A can shoot up to 5 pictures per seconds.

Camera	FPS (Frames per second)
Nikon Z9	30
Nikon D810A	5

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

In this case, both Nikon Z9 and Nikon D810A can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Nikon Z9 weighs 1340 gr (equal to 2.95 lb) which is 52% heavier than Nikon D810A and its 880 gr (or 1.94 lb).

Camera	Weight
Nikon Z9	1340 gr 2.95 lb
Nikon D810A	880 gr 1.94 lb