I have been slowly working through the various steps to get my 138 S ( purchased in approx May ) commissioned in the darkroom.
This is the unit with condenser head.
One minor issue that keeps bothering me is this :
I would like to install a heat filter, either absorbing or reflecting, in the allocated slots in the inside of the head.
Every time I go looking for material , I see that across the board, the glass thickness is around 3mm.
Now the slots in the inside of the light box look like they would not take much more than 1mm thickness.
I went looking through the manuals this evening to see if there was some sort of metal carrier into which the filter is mounted, which then slots into the 'spring-slots' in the head.
Best I could find is this shot from the 138 manual - but it's hard to see.
Does anybody have more hands-on knowledge on this ?
I am just about to talk to the local sub-contractor for optics test gear etc who can help me with some internal parts and ideas for the light-source mounting, so it would be good to get a bit of background info on this part, if we need to add it to the list.
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