scope bushnell

Hey guys, Im new here. I recently inherited 3 nice scopes, 1 Bushnell Banner 6x 30mm, 1 Bausch and Lomb Balfor A, and 1 Leopold. Im kind of lost on a lot of this stuff and Ive been researching for a few days with no luck. I have a ton of pics I can share if someone could help me out. I apologize...