guess u are looking at some general purpose catch-all type of lense, i guess lots of bros have said for a general purpose cropped sensor lense... it's gotta be the efs 18-55mm ...
try it and tell us what u think...
EF-S -> cropped sensor
EF -> full frame compatible
40D is a so called crop camera, can use both EF-S and EF lenses
Many threads in CS discussing this so have fun reading
Friend's event and dinner functions likely to be indoors ya ?
A lens with a larger max aperture (f1.4 - f1.8) or a external flash will be most helpful
okie! btw wat is the use of a cropped sensor lense? sorry newbie in this field =(~
duno, lol juz feel like 'investing' into a better lens hee hee hee =x
IF ur'ew very good with the kit lens, try the 18-55mm IS USM f2.8. The best lest for cropped sensors..