what other lenses do you have? I have a Nikon D90 and recently did a lot of research of which lenses to buy. I went to stores and handled them and read online, looked at tons of pic examples on nikoncafe.com and it is there is no easy way to decide.
The lens that seemed most reccomended was the 35mm 1.8 and I can attest it's outstanding. I don't have a good recommendation because I'm so new to photography but one consideration for me is the size of the lens, I will not carry huge lenses around so I tend to use my prime lenses most.
Right now my favorites are:
1. 35mm f/1.8 $200, outstanding
2. Tokina 12-24 f/4, ~$500
3. 50mm f/1.8 $100
I also have the Sigma 30mm f/1.4 which is equally outsanding to the 35 1.8. I tend to use the 35mm a bit more as it's smaller and a tad faster focusing.
'06 Toyota 4runner Sport v6
Icon Coilovers & Total Chaos UCAs, Icon Piggybacks, 265/70/17 BFG ATs, Shrockworks sliders, Garmin NUVI