I have a Yashica FX-3 Super 2000 and a Yashica DSB 50mm F1.9. The lens sits perfectly since it is Contax/Yashica mount. But the problem is that when I squeeze the shutter, the mirror moves up and then it gets jammed. I noticed that as I turn the focussing ring, the lens will protrude out from the back. So I can use the lens up to 1.2m. Anything more the lens will protrude out too much and obstruct the mirror from returning to its rest position. Pardon me if I am using the wrong terms. I am very new to photography.
Can anyone give me some advice? I thought that the Yashica lens should be compatible with a Yashica body. Both body and lens are manual focus. Have I done something wrong? Or can something be done to solve this problem?
Thanks in advance and looking forward to some input.