Geoff
VIP Member
With my Canon 50D, 7D, and now 5D Mark III I have always been able to push the ISO to around 1600 before I see any noticeable noise, unless you crop to 100%. With my 5D, I typically shoot indoor sports at ISO 8000-10000, and with some NR in Photoshop the images are noise free and still very clear.That is only because if you raise the ISO anything above 400, the Noise just get unacceptable.