Cooking a Pro Tessar to re cement it

[darinwc]

Quite a few pro Tessar lenses have serious de laminating of the elements. Has anyone tried cooking the lens to re cement it?

 

[Nodda Duma]

If you’re talking about warming up the lens to melt and reflow the balsam... it won’t work like you’d hope.

You have to separate the elements, clean the old adhesive off, and reapply the adhesive properly to fix separation.

 

[shutterfinger]

Read and follow the information at http://skgrimes.com/library/old-news/old-lenses-can-be-restored-by-re-cementing

 

[Jon Goodman]

I wrote about this a few years ago (with images). It was shared on several forums as far away as Romania. Here it is: http://forum.mflenses.com/re-cementing-doublet-elements-with-canadian-balsam-t34467.html