Well I am buying Canon EF 50mm f/1.8 II Camera Lens because I start people photography class and my instructor advised us to have a lens with a larger aperture. It is only $75 in amazon.com. Any comment on this lens will be great.
I don't have this lens, but I am considering it the moment I pay off my credit card.
My understanding is that the lens is used mainly for portraits and close-up (macro) photography. Its selling point is really its huge aperature, not its zoom. Also, since it lacks zoom, it is easy to make it so that it always gives crystal-clear image without any optical defects.
My impression is that zoom lens are the multipurpose tools - they do a lot of things, but aren't especially good at anything in particular. This one isn't a multipurpose one - it does one or two things, but it does them really well.
You can of course find a lens that has similar apperture to the one being discussed AND has zoom as well, but I will be surprised if you find it below $1,000 and it will be heavier than most textbooks.
Does it ever get annoying not being able to zoom in? I find myself using the zooming capabilities of my camera quite a lot. I guess it depends on what you shoot...
Does anyone know if it will work with Rebel XT?