How to test a lens for issues before buying used

Started Jan 2, 2013 | Discussions thread
Leigh A. Wax
Contributing MemberPosts: 855
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Fungus.
In reply to anibyte, Jan 2, 2013

Fungus is something that can form on lens coatings if a lens has been subject to dampness/moisture.

There is no fix for it other than to replace the glass elements, which could cost more than buying a new lens.

http://www.chem.helsinki.fi/~toomas/photo/fungus/

http://reviews.ebay.com/How-To-Detect-Flaws-in-Used-Camera-Lenses-on-Ebay?ugid=10000000001005542

Leigh

www.leighwax.com

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