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Hi.
I have a Sigma 500mm f/4.5 EX DG APO in Pentax K-mount. The lens mount plate is quite worn, the groove that locks the lens to the camera is almost worn out. Please see attached picture. I have contacted Sigma here in Sweden and they can’t get the part I need. Do any of you have an idea of where I can find one? I belive the part number is 5678P60.
I have tried to replace it with mounts from two other Sigma lenses from the same timeframe, but they do not fit. Thankful for any help.
Best regards, Henrik
Last edited by henrikknutsson; 01-20-2022 at 01:32 AM.
Reason: Fixed