Sony a900 vs Nikon D3x

This is a full comparison between the cameras Sony a900 and Nikon D3x. We compare them by looking at the categories you see below.

Sony a900

Nikon D3x

Manufacturing

Sony a900 is manufacturered by Sony but Nikon D3x is from Nikon. Both Sony and Nikon are well known brands though.

These two camera models were both released 2008.

Camera	Released
Sony a900	2008
Nikon D3x	2008

Type of camera

Both these cameras are DSLR cameras. No difference there.

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 a900	50 mm Full-frame sensor No crop factor/focal length multiplier
Nikon D3x	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

Both these cameras have the exact same resolution. Sony a900 has a 25 MP (Megapixels) resolution while Nikon D3x has 24,5 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Sony a900	25 MP 24385536 pixels 6048 x 4032
Nikon D3x	24,5 MP 24385536 pixels 6048 x 4032

ISO range

Nikon D3x has a larger ISO-range than Sony a900. Nikon D3x has an ISO range that stretches from 100 to 6400 while Sony a900 has 100 to 1600.

Camera	ISO Range
Sony a900	100-1600
Nikon D3x	100-6400

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 a900
Lens compatibility chart for Nikon D3x

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a900 can shoot up to 5 pictures per seconds and Nikon D3x can shoot up to 5 pictures per seconds.

Camera	FPS (Frames per second)
Sony a900	5
Nikon D3x	5

Ability to record movies

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

Though, neither Sony a900 or Nikon D3x can shoot movies so if that is a functionality that you are really looking for you should look elsewhere.

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 D3x weighs 1260 gr (equal to 2.78 lb) which is 41% heavier than Sony a900 and its 895 gr (or 1.97 lb).

Camera	Weight
Sony a900	895 gr 1.97 lb
Nikon D3x	1260 gr 2.78 lb