Canon EOS Rebel T3i / 600D ISO Noise Comparison

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by Bryan Carnathan

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Canon EOS Rebel T3i / 600D High ISO Noise Comparison - Color Blocks

Canon EOS Rebel XS / 1000D 100 | 200 | 400 | 800 | 1600

Canon EOS Rebel XSi / 450D 100 | 200 | 400 | 800 | 1600

Canon EOS Rebel T1i / 500D 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800

Canon EOS Rebel T2i / 550D 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800

Canon EOS Rebel T3i / 600D 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800

Canon EOS 50D 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800

Canon EOS 60D 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800

Canon EOS 7D 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800

Canon EOS 5D Mark II 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800 | 25600

Canon EOS Rebel T3i w/ NR 100 | 200 | 400 | 800 | 1600 | 3200 | 6400 | 12800

As the signal from the sensor is amplified, noise enters the picture. High ISO noise is not a differentiator when choosing between the T3i, T2i, 60D and 7D - I don't perceive any differences (other than that my T3i produces slightly brighter images). ISO 1600 and 3200 are the settings my tolerance for noise maxes out on. I reserve ISO 12800 for emergencies only.

The 5D II is obviously the winner in this competition.

The T3i's with-noise-reduction examples above have a range of noise reduction added - from 1,2 (Luminance,Chrominance) at ISO 100 up to 8,16 at ISO 12800. These examples clearly show that noise reduction reduces the visible noise - and reduces the fine details as well.

Here is another example that includes fine details.

Canon EOS Rebel T3i / 600D High ISO Noise Comparison - Fabric