im new to photography and hardly know anything about lens, but will this
work with the sony nex 18-55mm lens
I'm not sure if anybody answered your question yet, but yes, it will work. They are both 49mm.
what camera do you guys think i should get for my photgraphy class?
Depending on your budget and how much you know about photography. I have the t1i and that was the first camera i got. Depending on what you like, you might not even want to go dSLR (But i would recommend that you do). I got the t1i kit and then a 70-300 is usm lens, which i regret a little, I should have got something more midrange because I don't really shoot that far away.
enough blabbering. the camera you purchase would depend on your budget and your purpose.