initially i had a problem getting used to the 50mm cuz on my 50D its like some 80mm lens. mild telephoto. so TS u gotta get used to a lens stucked a mild telephoto, unable to zoom. if u haf the money to spare, just get it since its really really reasonable. price to performance ration rated 5 stars on photozone.de. personally i got this lens, for wad u pay its very POWER. its not a must have or damn good lens...its still a plastic toy-like cheapo lens at the end of the day. u may come to dislike the build like i did cuz i used to be on the 50 f/1.4. about the focal range...50mm is great for portraits if you are on a crop, u just have to ask urself if u r going to shoot in tight places or the great outdoors. personally i like this range for the portrait, low light ability and for streets where u dun wanna be too near your subject but yet not too far. i haf to say that 50 f/1.8 is really sharp from f/2.8 onwards but on a crop i feel its usable from wide open already (maybe i got a good copy, i dunno. but i tested 2 lenses and this lens gave me no issues so i got it). is it good in low light? definitely. however, i dun use this lens too often because it gives me the impression it will fall apart easily.