Hello, My Grandpa is interested in selling his Nikon F3 camera (1270476). I think it's about 20 years old, so isn't in excellent condition anymore. It also has a Nikkor 50mm F1:1.2 lense with it. What value would this selling it body alone, or with the lense? I'm also thinking about getting a Nikon D50. If I were to keep the lense, would that work with the D50? While I'm talking about the D50, I've found it for $350. Has anyone heard of Genius Cameras, and would this be a safe place to order from? Thanks!