optical cement?

".... Leave your doublet undisturbed in a quiet and warm place for a minimum of 1 week and maybe as long as 1 month. A sunny window is good, but do not let your doublet reach a temperature of higher than about 90 degrees F or the solvent in the solution will bubble (a disaster for you as bubbles were probably the problem you were repairing in the first place) Balsam around the edge will dry rather quickly, however the balsam in the very center will take possibly years to dry...and it is possible that it may never dry completely I suppose. ..."

http://forum.mflenses.com/viewtopic,p,1089900.html
 
youxin may do it cheaper... but this finder has so many problems (there's another lens decementing, framelines mask has cracks of some sort, RF patch is weak and finder is pretty dim in general) that I'd be willing to pay more for a finder overhaul. maybe someday...

maybe I'll try one with heat and one with sun... more research maybe. Once midterms are over...
 
well I took the RF apart and everything was good until I put water on the prism surfaces and stuck them together to see how the gluing would work... and I left the water on and it dissolved 40% of the silvering.


so I guess I'll be commencing my 49 days of mourning.
 
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