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Yes, Mark, the coating is slightly damaged.. but now it is way better than it was... I am storing it in dry place and actually I killed all the fungus with UV last year - so there was no change in performance since.
However, I was using the lens in the meantime - and only if I stretched the image a lot (to get out the faint details of nebulae for example) it became obvious that something was wrong with the lens - it was showing un-even background, the result of scattering the star light.
I am looking forward to some clear skies in Melbourne to test it.. it is cloudy now of course :-(
Last edited by bojan; 29-01-2012 at 06:21 PM.
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