Did you bother to read your manual? There is also the information on the box, on the canon website, in the 1001 reviews online... and you actually bought a camera without knowing anything about it? No research??
Oh, and to answer your question, please see the spec on Canon website. Click the "Specifications" tab, under "Type, Compatible Lenses", it says "35mm-equivalent focal length is approx. 1.6x the lens focal length". That is the crop factor you're looking for.
It's probably one of those situations when one decides to just go out and get a DSLR: "wowed by a XXD, impressed, get it"... then deciding to do a search on the internet on how good (or bad) it is, AND THEN discovering that there's such thing as a Full Frame camera...
Probably not the first as well. :bsmilie:
No worries, 50D is NOT a full-frame, not even the highly advertised 7D using Ken Watanabe to promote it... unless you get 5D or 1D. Did my research way before I've decided on my DSLR - which I still haven't even purchased yet... :bsmilie:
Welcome to CS, fret not, 50D isn't too bad of a camera after all, full-frame or not (full-frame doesn't always win all situations either)...
:bsmilie: Type "crop sensor camera" into google or youtube and you will get many explanations. Alot are simplified and easy to understand.
You will even come across the term "APS-C" which you can again input into google for a detailed explanation.
You can also try "50d crop" in google and you will get this result
Full frame vs crop: 5D vs 50D: Canon EOS 7D / 50D - 10D Forum ...
11 Oct 2008 ... There is absolutely no advantage with a cropped sensor.
forums.dpreview.com/forums/read.asp?forum=1019... - Cached - Similar
which i think the title pretty much answer your question?