I recently purchased Leitz Focomat V35 with color module and I intend to use the color module for BW multigrade papers. A friend of mine recommended not to do so, because this is more than 20 years old and the filter color must have been faded away. Of course I don't want to start to use new equipment from wrong standard setting.
However, I don't want to attach external filter (this enlarger has no grade filter attachment holder below the lens and I have to modify it to do so) and want to use color module. If the color module filters are faded, is it possible to replace with new filters and where can I get them? I never disassembled the module and don't know how it is constructed.