This week, while I was using my Nokton 35/1.2, the screws that hold the lens to the bayonet mount all snapped!
The lens that Jon is talking about was mine.
The problem that occurred was exactly the same. Suddenly, all of the screws snapped.
It was a chrome version of v.1, just like Johann's.
My local technician repaired it with screws from an old Minolta lens.
If necessary, I could inquire with him about which one.
Cosina Japan refused to deal with individuals and told me to contact Cosina's representative in France. The French representative did not answer my emails until the third try, and then only to refuse any help.
Stephen Gandy, to his credit, was willing to help, after a fashion, in spite of his suspicion of serious wrongdoing on my part.
Always ready to criticize myself before others, I let it go at that golden rule. But to be honest, I never treated that lens with anything but respect and care. It never underwent any kind of shock whatsoever.
At the time, I thought that perhaps it was due to some kind of stress induced when the bayonet was removed and replaced again (for 6-bit coding by John Milich). But now seeing Johann's lens experience exactly the same problem in the same way, it sounds very fishy to me.
I think it is important that both Cosina Japan and Stephen be informed of this problem. It cannot be coincidence. At the same time, there is no need for alarm or overgeneralization about a manufacturer's QC.
The v.1 35/1.2 is a wonderful lens that compares favorably to anything at any price point.
