Since the Canon 7D applies noise reduction at all ISOs (despite its name), we've included crops at lower ISOs. There was a lens cap on and the viewfinder was covered. See for yourself how the noise reduction works under both daylight and tungsten-balanced lighting. The combination of shooting with NR turned off and using a good noise-filtering program after the fact can produce very clean images with lots of fine detail in them. It's not clear that the "Off" setting truly eliminates the noise processing altogether, but it is true that it leaves a lot of fine/subtle subject detail there for you to work with. ![]() ![]() Its different noise-reduction settings also allow you quite a bit of flexibility in choosing how you want to make the trade-off between subject detail and noise levels. The Canon 7D offers four settings for noise reduction: Off, Low, Standard and Strong, and NR is applied at all ISOs.
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