Sony a9 vs Nikon D4

This is a full comparison between the cameras Sony a9 and Nikon D4. We compare them by looking at the categories you see below.

Sony a9

Nikon D4

Manufacturing

Sony a9 is manufacturered by Sony but Nikon D4 is from Nikon. Both Sony and Nikon are well known brands though.

Sony a9 were released 2017 and Nikon D4 was released 2012. That is a 5 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Sony a9	2017
Nikon D4	2012

Type of camera

Sony a9 is a Mirrorless camera while Nikon D4 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

Even though the camera sensors might be called differently they are both considered Full frame which means that the focal length of the lenses is not affected. There is no crop factor on any of these cameras and sensors.

Camera	Focal length, 50mm f/1.8 **
Sony a9	50 mm Full-frame sensor No crop factor/focal length multiplier
Nikon D4	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 (Sony)
Camera selection can affect the focal length (Nikon)

Resolution

Sony a9 has a 24 MP (Megapixels) resolution while Nikon D4 has 16,2 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Sony a9	24 MP 24000000 pixels 6000 x 4000
Nikon D4	16,2 MP 16163840 pixels 4928 x 3280

Sony a9 has a 48 % larger resolution than Nikon D4. 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 D4 has a larger ISO-range than Sony a9. Nikon D4 has an ISO range that stretches from 100 to 204800 while Sony a9 has 100 to 51200.

Camera	ISO Range
Sony a9	100-51200
Nikon D4	100-204800

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 Sony a9
Lens compatibility chart for Nikon D4

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a9 can shoot up to 20 pictures per seconds and Nikon D4 can shoot up to 11 pictures per seconds.

Camera	FPS (Frames per second)
Sony a9	20
Nikon D4	11

Ability to record movies

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

In this case, both Sony a9 and Nikon D4 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 D4 weighs 1340 gr (equal to 2.95 lb) which is 99% heavier than Sony a9 and its 673 gr (or 1.48 lb).

Camera	Weight
Sony a9	673 gr 1.48 lb
Nikon D4	1340 gr 2.95 lb