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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
These results show that the Fuji X-E1's JPEG files have the strongest signal to noise ratio of all the cameras tested here, with the exception of the Panasonic GH3 at ISO 200. The Fuji X-Pro1 is the next strongest performer here, followed by the Olympus OM-D and Sony NEX-7.
Raw signal to noise ratio
The signal to noise ratios of the TIFF images (after conversion from raw) from the Fuji X-E1 don't compare quite as well for signal to noise ratio as the JPEGs did, coming behind the Olympus OM-D at all sensitivities and below the Panasonic GH3 at ISO 200 and 400. The Fuji X-E1 beats the Panasonic at higher sensitivities though, and beats the Sony NEX-7 and Fuji X-Pro1.
JPEG dynamic range
JPEG results for the Fuji X-E1 show strong dynamic range, just ahead of the Olympus OM-D, Fuji X-Pro1 and Sony NEX-7. The Panasonic GH3 has much lower dynamic range at low and middling sensitivities, but overtakes the X-E1 at ISO 6400 and beyond.
Raw dynamic range
This chart indicates that TIFF images (after conversion from raw) from the Fuji X-E1 show weaker dynamic range than the JPEG images, compared with the other cameras. The Olympus OM-D comes out top, followed by the X-E1, then the Sony NEX-7, Fuji X-Pro1 and Panasonic GH3.
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Amy has been writing about cameras, photography and associated tech since 2009. Amy was once part of the photography testing team for Future Publishing working across TechRadar, Digital Camera, PhotoPlus, N Photo and Photography Week. For her photography, she has won awards and has been exhibited. She often partakes in unusual projects - including one intense year where she used a different camera every single day. Amy is currently the Features Editor at Amateur Photographer magazine, and in her increasingly little spare time works across a number of high-profile publications including Wired, Stuff, Digital Camera World, Expert Reviews, and just a little off-tangent, PetsRadar.