I have recently bought a minolta XK with missing the dof (and also the mirror lock up) button. It works and has an exc++ cosmetic except such missing parts. Then I bought an urly XK parts camera and try using its parts to 'save' my first XK. Unfortunately, all repairmen tell me that XK is irrepairable!!! Anyone know why XK is usually out of order and irrepairable? Thank you for your answer.