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Is this the beginning of lens separation?
Old 10-17-2016   #1
Huss
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Is this the beginning of lens separation?

Or am I just worrying over nothing? I have two Fuji/Hasselbald 45mm f4 lenses (for Xpans) and this second one has three bright crescent edges on the rear most elements, evenly spaced. You can see one clearly on the bottom in this shot. It stops just to the top left of a circular light reflection. The other lens does not show this.


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Old 10-17-2016   #2
Sarcophilus Harrisii
Brett Rogers
 
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Very hard to be sure from such a shot but if the details you referring to are the ones I'm trying to examine I don't think so. I may well be misinterpreting what you're referring to: but they don't seem to start at the edge of the glass. When cement failure occurs, it nearly always starts from an edge and gradually progresses towards the centre of the glass.

There are more easily visible circular lines as well, but to me it seems obvious they are the outer edges of some of the inner elements visible from the back. I can't see much to worry about here. But if you think I'm looking at the wrong things, or have misunderstood what you're referring to, by all means elaborate.
Cheers,
Brett
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Old 10-17-2016   #3
Huss
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Thanks Brett for the reassurance. I compared it to my other 45mm and I think it's just sample variation.

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