#6. New white balance algorithm
An image quality-related 1D IV improvement is the new white balance algorithm that attempts to make colors more accurate when shooting under low color temperature light sources such as household tungsten lamps. Until the 7D came along, Canon EOS DSLRs all evaluated auto white balance poorly under tungsten lights. Choosing the tungsten white balance setting or using a custom white balance was the easy solution to the problem. The EOS 7D gets tungsten white balance right. Auto White Balances tungsten better, but images shot under these lights are still more warm-toned than they should be. The 7D definitely has the tungsten AWB advantage.