Originally Posted by
Kevin Crisp
Yes, regluing will solve it, but something this minor doesn't qualify as a practical problem. It may remain steady like this for years. I'd be especially careful to avoid temperature shocks, though, like leaving the camera bag in a car trunk.
This doesn't look like a balsam separation. I doubt even wide open something this minor would have an effect. I have a few Protars I have not fixed yet, and ring of crystallized brown balsam extends a couple cm into the lens. Stopped down, the lenses work fine. Compared to that, this is nothing. You'd be going to a lot of trouble to fix something that is merely cosmetic, but if that is very important to you, it can be fixed. Getting a lens like this, glued with what I assume is an older synthetic glue, can be a challenge.
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