Hi Becca,
The camera is a Nikon D50 (The closest to it today is the D40). I love the camera and the battery charge lasts for a really, really long time. The lens on most of those images was my Quantaray 70-300 zoom lens. It also has a macro setting. However, I also used my other lens Nikkor 28-80. It's a good lens but I am wanting to get one in the 18mm area preferably a macro lens.
Since taking the photography class, I'm wanting a couple more lens, not to mention another camera, so I can have two lenses set at a time. Changing lenses on a windy beach isn't recommended.
Lynn