joe_smith44 Posted July 18, 2012 Share Posted July 18, 2012 <p>What in the world is this growing in my 80-200 f/2.8???<br> It appears to be on the inside surface of the first element.<br> <img src="http://i1157.photobucket.com/albums/p595/_Joe_Zona_/LENS_.jpg" alt="" width="1023" height="591" /></p> Link to comment Share on other sites More sharing options...
Matt Laur Posted July 18, 2012 Share Posted July 18, 2012 <p>Penicillin, Erythromycin, or some less useful mold. Does not look like a truffle.</p> Link to comment Share on other sites More sharing options...
dave_wilson1 Posted July 18, 2012 Share Posted July 18, 2012 Did you try using some alcohol (even a little vodka) on a Q tip to see for sure if it's not on the outside. Those little specs look like they continue right to the outer edge. Almost like residue from a liquid that got on there. Link to comment Share on other sites More sharing options...
joe_smith44 Posted July 19, 2012 Author Share Posted July 19, 2012 <p>Definitely on the inside.<br> That's what is so perplexing...the lens has spent nearly it's entire life in Arizona, too.<br> I cannot remember this lens even being out in the rain, at least in the past 10-15 years. And this "growth" just appeared in the last year or so.</p> Link to comment Share on other sites More sharing options...
dave_wilson1 Posted July 19, 2012 Share Posted July 19, 2012 Niiiiiiiiice!!!! Link to comment Share on other sites More sharing options...
MichaelChang Posted July 19, 2012 Share Posted July 19, 2012 <blockquote> <p><em>"That's what is so perplexing...the lens has spent nearly it's entire life in Arizona, too."</em></p> </blockquote> <p>Was the house in Arizona equipped with evaporative cooling (aka swamp cooling)? If so, that might explain it. </p> Link to comment Share on other sites More sharing options...
mike_halliwell Posted July 19, 2012 Share Posted July 19, 2012 <p>If I didn't know better, it looks more like a satellite picture of some river estuary spewing muddy water into the sea after a storm... :-)</p> <p>Never seen colours like that short of oil-on-water effects......something is 'in' very thin layers. It does have a hint of fluid between elements...maybe the BUG is eating the optical cement?</p> Link to comment Share on other sites More sharing options...
dan_brown4 Posted July 19, 2012 Share Posted July 19, 2012 <p>That disease looks fatal. :^(</p> Link to comment Share on other sites More sharing options...
mike_halliwell Posted July 19, 2012 Share Posted July 19, 2012 <p><em>Elementisis mortans var Arizonicus</em>?....? Humm, a nasty case indeed!</p> <p>Always terminal, certainly infectious, possibly contagious........isolate that lens, but wear gloves!</p> Link to comment Share on other sites More sharing options...
blu_dek_lawoe Posted July 19, 2012 Share Posted July 19, 2012 <p>What ta...!</p> Link to comment Share on other sites More sharing options...
joe_smith44 Posted July 19, 2012 Author Share Posted July 19, 2012 <p>Here's what I got from the shop:</p> <p >"It looks like it could be rusty water or perhaps lube that has run. Either way… it may be something we can open and clean off however, if this has been present (on the glass) for a long while it could have damaged the lens coating and marking will still be visible after cleaning. Due to the age of the lens there are no parts available to replace the lens element. <br /></p> <p >To disassemble the lens and clean the approximate (ballpark) cost would be 224.00. To have your lens evaluated for service and repair cost pleased send to the following address..."</p> <p > </p> <p >So now the question is...repair or not? It's a bit sticky because I just upgraded to a 5DIII and my plan was to ebay the Nikon kit...lenses like this are not very popular sellers, so I'm thinking it may not be worth repairing and re-selling.<br /></p> <p > </p> Link to comment Share on other sites More sharing options...
michael_alger Posted July 19, 2012 Share Posted July 19, 2012 <p>Hmm, would be interesting to see some pictures taken with it.</p> Link to comment Share on other sites More sharing options...
JRCrowe Posted July 19, 2012 Share Posted July 19, 2012 <p>Buy an adapter for it to fit the new camera.</p> Link to comment Share on other sites More sharing options...
Lou_Meluso Posted July 19, 2012 Share Posted July 19, 2012 <p>Did you leave the lens in a hot place? It could have liquefied the helicoil lubricants. If it is lubricants, they should clean up OK. Fungus has a tendency to munch on your lens coating. </p> Link to comment Share on other sites More sharing options...
joe_smith44 Posted July 19, 2012 Author Share Posted July 19, 2012 <p>John, good idea - I popped off a couple of shots, one @ ~80mm and another at ~200mm of a plain grey wall about 12' from the camera...the lens spot is not noticeable!<br> <br />I fooled around with the RAW photos in Photoshop to try and bring out any evidence of the stain and I cannot make the stain appear.<br> I also noticed if you are looking straight into the lens, you cannot see the stain. It seems only visible when light reflects off it.<br> I've been doing this for over 30 years, and I'm still learning...LOL</p> Link to comment Share on other sites More sharing options...
Landrum Kelly Posted July 22, 2012 Share Posted July 22, 2012 <p>It's really just possible that it is not a fungus. I would definitely open it up and see what can be done.</p> <p>--Lannie</p> Link to comment Share on other sites More sharing options...
Landrum Kelly Posted July 22, 2012 Share Posted July 22, 2012 <p>It's really just possible that it is not a fungus. I would definitely open it up and see what can be done.</p> <p>--Lannie</p> Link to comment Share on other sites More sharing options...
francisco_salaquanda Posted July 25, 2012 Share Posted July 25, 2012 <p>It looks like oil from the moving bits inside. Its a definite splatter pattern. Did you go out in the rain at all? Off to Nikon for a CLA.</p> Link to comment Share on other sites More sharing options...
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