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Old 30th Nov 2017, 6:00 am   #10
Argus25
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Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,679
Default Re: Care of Rare Valves

Quote:
Originally Posted by TonyDuell View Post
And the effects noticed in 80 year old valves would seem to be a lot larger than the amount of flow to ruin a lens of a similar age.
That is a very good point it wouldn't take much to totally degrade the optical performance of a lens.
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