Canon Rebel T1i Digital Camera Review$799.99
With noise reduction turned off, the noise levels were a bit on the high side, hitting just over 2% at ISO 3200, though this is brought down to 1% if you crank the noise reduction all the way up. If any level of noise reduction is used, the noise is kept below 1% up to ISO 800, which is respectable.
We look at the different levels of noise between red, green, blue and luma (gray). Usually, these are very tightly grouped together; the T1i is unusual in having lower yellow and green noise levels than other types. More on how we test noise.
The official ISO range on the Rebel T1i runs from 100 to 3200, but has an extended range that reaches up to ISO 12,800.