What is the lifespan of optical coatings on lenses?

2 years 11 months ago #716904 by Ben Vanderbilt
Everything is effected by the sun.  That said, what is the lifespan of the optical coatings on our lenses?  

Any clue?


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2 years 11 months ago - 2 years 11 months ago #716905 by Nikon Shooter
I did not experience any degradation due to light, any light.
I think, however, that the worst is careless operation added
to /or abrasion.

Light is free… capturing it is not!
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2 years 11 months ago - 2 years 11 months ago #717019 by TCav
One of my favorite lenses is a Minolta AF 70-210/4, affectionately known to its many fans as "the Beercan". It was one of the first autofocus lenses ever made, first made in 1985 and discontinued in 1988.

If the coating has degraded, I haven't noticed it.


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2 years 11 months ago #717070 by TCav

Ben Vanderbilt wrote: Everything is effected by the sun.  That said, what is the lifespan of the optical coatings on our lenses?


It might have a lot to do with whether or not you keep the lens caps on.


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2 years 11 months ago #717235 by Ian Stone
I would guess that you would need to keep it exposed to the sun for a LONG time, and then it would degrade.  But considering most don't leave their lenses exposed to the sun every day, all day, you'll be fine.


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2 years 11 months ago #717294 by Uplander
Agree with Ian, good point.


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2 years 11 months ago #717448 by Fitch
Do you plan to leave the lens in the sun 24/7?  If not, I suspect with normal exposure, it wouldn't be something you need to worry about.  


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