People who have doubts with the performance of 300D should take a look at the concluding section of A Rebel in Paris by Alain Briot:
Originally Posted by xcesstunes
"In evaluating the final results from my two weeks photographing in Paris, and while actually looking at prints done from my 300D images, I find these prints to be comparable to 4x5" [Fuji 645zi medium format], in terms of sharpness and overall image quality, in size up to 11x14 and maybe even larger, although I have not yet done prints larger than that from 300D images. For me, this is a lot to say! I use 4x5" because it affords me optimal image quality on multiple levels. But, when not planning to make huge enlargements, digital 35 is something to consider seriously. In fact, when it comes to shadow control in underexposed areas, nighttime or low-light level photography, and, finally, lightness and speed, the 300D has a definite edge over 4x5"."