We shoot a specially designed chart in carefully controlled conditions and the resulting images are analysed using DXO Analyzer software to generate the data to produce the graphs below.

A high signal to noise ratio (SNR) indicates a cleaner and better quality image.

For more more details on how to interpret our test data, check out our full explanation of our noise and dynamic range tests.

JPEG Signal to noise ratio

Nikon D4 review JPEG SNR

JPEG images from the Nikon D4 show good signal to noise ratio results, just beating the Nikon D3x, Canon EOS 1D MK IV, Nikon D700 andCanon EOS 5D MK II.

Raw images

Nikon D4 review TIFF SNR

TIFF images (after conversion from raw) show that the Nikon D4, has better signal to noise ratio than all but the Canon EOS 5D MK II between ISO 1600 and 6400. The Nikon D700 also just betters the D4 in this test at ISO 6400.

JPEG Dynamic range

Nikon D4 review JPEG dynamic range

This chart indicates that the Nikon D4's JPEGs have at least a 1EV higher dynamic range than the comparison cameras across the greater part of the sensitivity range.

Raw Dynamic range

Nikon D4 review TIFF dynamic range

TIFF images (after conversion from raw) from the Nikon D4 have a greater dynamic range than the Canon EOS 1D MK IV, Nikon D700 and Canon EOS 5D MK II with only the Nikon D3x gaining a similar result at ISO 100.


Head of Testing, Cameras

Angela (Twitter, Google+, website) is head of testing for Future's photography portfolio, writing and overseeing reviews of photographic equipment for Digital Camera, Photography Week, PhotoPlus, NPhoto and Practical Photoshop as well as TechRadar's cameras channel. Angela has a degree in photography and multimedia and prior to joining Future in October 2010 was Amateur Photographer magazine's technical editor.