I got my XSi 18-55 & 55-250 kit for christmas and things have not been as good as I had hoped ... I felt that my PowerShot A95 was holding me back and I thought when I picked up the XSi it would just instantly improve my photo quality... I guess that was a little fool hardy ... W/ my P&S I could go out w/ my tripod point at the stars set ISO to 200 (400 max but too grainy) open the aperture all the way, set focus too infinity and shoot away and take decent star pics ... w/ my XSi I cannot even find stars! lol auto focus freaks out in the dark and doesn't know what to do and when I'm squatting down to look threw the viewfinder I generally have to take the lens to it's widest setting and struggle to even find stars to bring into focus ... Is there a simple way to focus on the night sky? Why am I having soo much trouble with it? I have been surprised by how little noise my XSi is showing on 1600 ISO & looong exposures... but it actually seems to be too bright and washes the stars out... Any good advice (links to articles or explanations) for shooting the night sky?