I come to this board with a problem. My trusty Minolta XG 1 with an MD Rokkor 50mm lens has started giving me some trouble. The MD tab, the little tab on the camera body that's on top of where the lens meets the body, is stuck all the way to the left. This little tab used to move easily along with a corresponding tab on my lens as I adjusted the aperture. Now the tab just won't budge and stops me from using my full aperture range. The lens is also extremely difficult to take on and off, requiring a lot of force to get it into it's proper position. Removed from the body, the lens appears fine and the aperture works, which leads me to believe that it's a problem with my camera itself and not the lens. After extensive googling and inspecting, I feel like I've figured out the problem, but I haven't found any solutions on how to fix it and if I can even fix it myself? Any advice would be greatly appreciated? I love this camera and hope I can figure out a solution!