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Canon 17-40 weird white dots inside front element

Started Sep 1, 2017 | Discussions thread
Abu Mahendra Veteran Member • Posts: 5,312
Re: Canon 17-40 weird white dots inside front element

Fotookes wrote:

Abu Mahendra wrote:

Looks like classic case of Schneideritis. Google it.

I also seem to have a 17-40mm which 'caught this disease'!!!

Didn't use my lens for a few months, and moved over very long distances twice in less than two years and last week wanted to use my lens again and was greeted by a bunch of weird white spots in between the front lens group!!! Yikes, didn't look like anything I ever saw before (dust, mould, you name it!).

Posted a question about it here on the forum before I found this one but nobody really knew what the problem could be either...

Any who, what you came up with really seems to nail it!

Thanks!

Abu always nails it!

 Abu Mahendra's gear list:Abu Mahendra's gear list
Canon EF 100mm F2.8L Macro IS USM Canon EF 70-200mm F2.8L IS II USM Canon EF 70-200mm F4L IS USM Canon EF 24-70mm F2.8L II USM Canon EF 40mm f/2.8 STM +5 more
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