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Archive 2010is this fungus or something else?

  
 
sebboh
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p.1 #1is this fungus or something else?
i've never had a lens with fungus before, but i got an old nikkor HC 5cm f/2 super cheap and it has something funky on one of the elements (in addition to lots of little scratches on the front element. anyway, i was wondering if this is fungus or something else, and what the chances of somebody being able to get it cleaned off would be.

shots of the lens:
http://farm5.static.flickr.com/4103/5127472681_44f95ff2b9_o.jpg
http://farm5.static.flickr.com/4051/5128078454_877316710b_o.jpg
Oct 30, 2010 at 01:04 AM
LightShow
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p.1 #2is this fungus or something else?
Dropped in a river?
Oct 30, 2010 at 01:31 AM
sebboh
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p.1 #3is this fungus or something else?
who knows, i think the seller got it at an estate sale. shockingly, pictures come out all right after a large curves adjustment and a bit of added clarity, though it does have a certain low contrast "film" look to it. i think i must be losing at least one T stop on exposure though.
http://farm5.static.flickr.com/4085/5127475331_d63522e823_o.jpg
Oct 30, 2010 at 01:41 AM
amade1974
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p.1 #4is this fungus or something else?
i'd agree with Lightshow, though it may have grown fungus after being flodded
Oct 30, 2010 at 04:00 AM
carstenw
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p.1 #5is this fungus or something else?
If it is just on the outside, it looks like something ate away at the coatings.
Oct 30, 2010 at 04:04 AM
sebboh
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p.1 #6is this fungus or something else?
carstenw wrote:
If it is just on the outside, it looks like something ate away at the coatings.


it looks like it is just on one lens surface, but an interior one - it almost looks like it's between the 2 cemented rear elements, but it's hard to say for sure.
Oct 30, 2010 at 10:45 AM
Bifurcator
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p.1 #7is this fungus or something else?
It could be separation too. Separation takes two common forms. Circular swiping patterns and thousands of white-ish bubbles. This looks like it could be the later. <shrug>

Take it apart and if it's actually on the surface then it's not separation. If it is doublet or triplet separation you won't be able to tell which surface it's on without examining it directly through a loupe or something similar - as is very often the case.





Oct 30, 2010 at 10:56 AM
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