Super Chromega D Dichroic II Lamphouse

[LuLu2]

I am back in the darkroom after several years away, and am hoping that someone can give me some advice about a repair to my Super Chromega D Dichroic II 4x5 Lamp house. While troubleshooting the lamp house I discovered that the yellow filter has become unattatched from the Filter Holder assembly. I retrieved it from the bottom of the lamp house and now need to know how to reattach it (or if I can even do so!). The Cyan filter is also missing, but since I am only using this enlarger for B & W printing, I should only be needing magenta and yellow filters. I'm not looking forward to taking this apart. Advice will be very helpful.

 

[Neal]

I am back in the darkroom after several years away, and am hoping that someone can give me some advice about a repair to my Super Chromega D Dichroic II 4x5 Lamp house. While troubleshooting the lamp house I discovered that the yellow filter has become unattatched from the Filter Holder assembly. I retrieved it from the bottom of the lamp house and now need to know how to reattach it (or if I can even do so!). The Cyan filter is also missing, but since I am only using this enlarger for B & W printing, I should only be needing magenta and yellow filters. I'm not looking forward to taking this apart. Advice will be very helpful.

No guarantees but I used a dab of super glue decades ago. Still attached.

 

[LuLu2]

No guarantees but I used a dab of super glue decades ago. Still attached.

Sounds like a good idea - I was wondering about the effects of heat on superglue, but for me a decade or two would be great. Did you have to disassemble the entire lamp house to do that?

 

[Sirius Glass]

Welcome to Photrio!

 

[Neal]

I don't think you can do it without disassembly but I won't say it's impossible.

Good luck!

 

[Donald Qualls]

From what I recall looking inside my Super Chromega D, it might be possible to reattach the filter glass to the holder without disassembly if you use a slow-setting super glue. Apply the glue to one surface, set the filter in place, give the tiniest possible shot of accelerator, hold for a few seconds (you can often see the glue crinkle on the surface as it cures), then figure out a way to clean the kicker residue off the filter(s).

 

[LuLu2]

Belated thanks to everyone for your advice. With the help of schematic diagrams I got from kbhphotographix.com, I ended up removing the filter holders from the housing, using a thermoelastic glue recommended by Larry at KBH called Ply-o-bond. He said it was used originally by Omega because of the heat generated by the halogen light and the difference in expansion rates of the glass and the metal it's attached to. Then I reassembled everything (watching out for the tiny springs!). It's working perfectly now and I learned a lot more than I every knew about this enlarger! Thanks again for your support.