The XTi is the 400D, the latter is a secondary name used mainly in Europe.
Your settings in M mode are probably incorrect; can you give an example? The camera shouldn't produce radically underexposed photos unless the combination of shutter speed/aperture is incorrect.
I have recieved a Canon 400D as a present, it doesnt come with the standard lens. Ive been using it all week, since its a great camera and shoots awesome pictures. It has a "canon zoom lens EF 28-105mm 1:3.5-4.5" lens. Its actually a good lens, the zoom I get is enough.
I have several questions if someone can PLEASE answer them.
Whats the diference from the Rebel Xti and the 400D ???
When I take a picture in the "M" mode, the picture comes all black; even though i have adjusted the aperture and the speed. Is this because of the lens? Do I need to take the picture with brighter light?
THANKS!

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