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Canon EOS Rebel XSi (450D)

Review Date: Aug 3, 2009 Recommend? yes | Price paid: $900.00 | Rating: 8 

Pros: Great image quality, accurate focus, lightweight body, more ergonomic grip improved from previous generations
Overexposure issues (read below)

I recently bought a Canon 450D and had to return it because it always overexposes by 0.17 to 0.666 of a stop when compared to my factory calibrated 350D which has correct exposure. Most of the time it overexposes by 2/3 of a stop even in simple lighting conditions.

The 450D has the latest 1.1.0 firmware. Samples here (shot in RAW, center point AF only, converted in DPP with sharpness 4, contrast -1, saturation -1):




Apparently there are many reports of the 450D overexposure issue in forums like dpreview.

Last weekend I bought a second 450D after testing three of these and comparing shots with my 350D (using the same lens and shooting positions) and found it too had the same issue. I also noticed when using Liveview the exposures will always be less overexposed and more accurate.

So far I have tried 4-5 different 450Ds in stores and have come to the conclusion that the problem exists in most if not all 450ds.

I also noticed something really strange... In some situations where there is a bright light source around you the camera will record a slightly faster exposure when you dont bring your eye to the eyepiece (stray light must be getting in and affecting the light meter). Perhaps that is a side effect of the larger, brighter viewfinder. I confirmed the 500D also does this but my 350D does not.

I hope it is possible to get the over exposure issue fixed at a Canon factory service center. I have read a story about a guy with a 400D (which are known to have underexposure issues) and he got his fixed this way.

My email is jhellier[at] if you want to discuss this.