To clarify the problem, I would like to clean the fungus on the inner part of the lens of a Voigtlander Vito CSR (I think is one of the last version of this model) but I cannot find the repair manual to know how to proceed. I've found these photos from a VITO B
To disassemble the middle lens he used a kind of rubber tool but VITO CSR is quite different so I'm not sure at all that the manufacturing is equivalent (for example maybe there is a mechanical retainer that I have to unlock first...)
The middle lens have a hole in the outer tube and I tried to use it to unscrew counterclockwise without success. I tried also with a homemade rubber tool with a pin (I used a small nail) as shown in this thread
but maybe my rubber has not enough grip or this is not the way but I cannot move the tube at all. The hole is small and the pair I can make with the pin inserted is also weak and that's why I though a rubber tool can helps but the lens seems stuck.
There are also three screws on the bottom of the outer golden plate (see picture in my first post of this thread) but they are sealed so I'm afraid to remove them and decalibrate something.
I cannot see the way to disassemble the rear lens (as suggested by Brett) as it has not visible way to unscrew without (maybe) disassembling mostly all the camera...
Can anybody show me how to follow? Any suggestion?