1 Lens board 139 mm x 139 mm with 10 mm rabbet on the back (sharp corners).
Is made of solid Mahogany wood (mahogany stained).
Rebated front lip is 4.4 mm thick.Available lens boards: #1, or #3, or undrilled & free hole
If you need hole in the lens board and if you give me a dimension - I will do it for free.
In addition, I need to know if you need recess for screwing a retaining ring in the rear side,
or flat hole for mounting a flange on the front side.
I reserve five (5) business days to fulfill all orders. Please be patient...
Everything is handmade and takes time.
Any question- please ask.