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 images from the Nikon D3200 show similar signal to noise ratio results to the D3100 up to a sensitivity of ISO 1600, above this value the results show a marked improvement.
TIFF images (After conversion from raw) from the Nikon 3200 are on a par with those from the Canon EOS 1100D and show improved results across the entire sensitivity range when compared with theNikon D3100.
This chart indicates that the Nikon D3200's JPEGs have at least a 1EV higher dynamic range than theNikon D3100 up to a sensitivity of ISO 400, above this value it maintains around 0.5ev better dynamic range.
This chart indicates that the Nikon D3200 TIFF files (After conversion from raw) show a big improvement for dynamic range at all sensitivities over the D3100. At the lower end of the sensitivity range between ISO 100-400 the results show as much as a 2ev difference between the two cameras.