I've disassembled, cleaned and regreased several pairs of run-of-the-mill Japanese porro prism binoculars without much problem. Now I have an old pair of Hensoldt roof prism binos with a very stiff focus mechanism and I want to give them the same treatment, but I'm not sure about the differences in the design of the focuser. I don't want to start unscrewing or removing things based on my knowledge of porros, and end up messing up the roofs. Can anyone share some tips based on their experience?
Cleaning and regreasing focus on old German roof prism binoculars
Posted 24 November 2020 - 09:55 AM
I take plenty pictures as the procedure progresses - they're easy to delete. I also take light cardboard and label where each screw came from and put it in a hole in the cardboard. Make notes of your disassembly, sometimes how to put it back together is not as straightforward as we hope. A complete guide is in my signature.
Posted 24 November 2020 - 10:07 AM
Specific to roof prisms : don't hurt the roof edge.