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Nikon CoolPix S640 - Test Shots - ISO Performance

By Cliff Smith



Our Score:


Over the next few pages we show a range of test shots. On this page the full size image at the minimum and maximum ISO settings have been reduced to let you see the full image, and a series of full resolution crops have taken from original images at a range of ISO settings to show the overall image quality. These ISO test images are shot indoors using shaded natural light.


This is the full frame at 100 ISO.


At minimum ISO the image quality is excellent. Those white marks are dust on the model.


Still no problems at 200 ISO.


Noise is starting to show at 400 ISO, but the overall quality is still good.


Noise reduction has reduced the level of detail at 800 ISO, but colour rendition is still good.


Noise is becoming a problem at 1600 ISO.


Image quality is greatly reduced at 3200 ISO.


Image noise is causing major problems at 6400 ISO, with some hot pixels and very little detail.


This is the full frame at 6400 ISO.



January 23, 2010, 4:45 am

Goodness me it's like dealing with the Chinese goverment....can someone please tell me what's happened to your forum, and what measures you're taking to get it up and running. This lack of transparency is really embarrassing


January 23, 2010, 7:40 am

@John - all will become clear with an official news post we shall be putting up about the site soon. *Queue tension music* ;)

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