http://www.nikonchat.com/nikkor-wide-angle-lens/

What goals are compatible with my Nikon D90?
I recently bought a d90. I'm a little confused with what is compatible with it. I come from a Olympus E-30 and I am a newbie in the range of Nikkor lenses. I'm looking at a wide angle and macro lens. Does anyone have any suggestions for a worthy goal for each one more cheap-ish?
all Nikkor lenses are compatible with all Nikon cameras. They all have the same "F" Monte "and are interchangeable. To wide running from the 18-55mm do not know a macro that works for you because there's really no economic as possible. I suggest you look at the lenses made by Sigma, you can get with F-Mount, and are generally cheaper than the Nikkor. I also suggest you get the Nikkor 50mm f1.8 prime lens. Is little more than $ 100 and is a great around the lens. Good luck:)
Nikon COOLPIX P500 12.1 CMOS Digital Camera with 36x NIKKOR Wide-Angle Optical Zoom Lens