i wanna use 50mm for portrait use...anyway do u guys have a picture of a night shot taken by 50mm 1.8?
in my opinion, it's a "nice to have" lens but not necessarily required. for shooting in low light, there are other ways to get around this (ISO, shutter speed and/or flash). as for portrait uses, some people feel that the wide aperture is nice for those "bokeh" effects.
the question is, what existing lens do you have right now? and among your existing lens, do you feel you've maximized it's limit?
always remember that a "better" lens doesn't necessarily mean you'll be a better photographer.
just to share, I use my kit lens (wide 14-42mm f3.5-5.6) for my
macro and
landscape shots, and my other kit lens (tele 40-150mm f4.0-5.6) for my
portrait shots.
bottomline, save your money. if you're a newbie to photography, don't just go buying prime lens (even if you're rich and have money to burn). you can buy those prime lens later. and if you're itching to spend, i would suggest you use the money to buy books and attend workshops/classes first.
there are still a lot of things to learn and explore out there (note: i'm a newbie myself -- just bought my first DSLR last July). you can worry about prime lens later.
please visit my websites:
http://john.mariquit.com <- it's a blog of my adventures in photography as a newbie (using kit lens, remember?)
http://phyrewall.multiply.com/photos <- is a WIP for my adventures in model photography (still using a kit lens, again).
if you're still not convince, and itching to buy a 50mm f1.8, then by all means go for it. just make sure you maximize it's use, lest it ends up tucked away in a dry cab and never to see the light of day again :bsmilie: