CS. Posted September 18, 2020 Share Posted September 18, 2020 That's a Canon 70-300mm DO. It is hard to tell if it is on the inside of the second element or the outside. Link to comment Share on other sites More sharing options...
CS. Posted September 18, 2020 Author Share Posted September 18, 2020 Looking closely, the dust specs are on a lower level than the haze. Link to comment Share on other sites More sharing options...
JDMvW Posted October 3, 2020 Share Posted October 3, 2020 If you are lucky it could just be dust, but it has the appearance to me of being the initial stages of fungus. In either case. there would be only a very minor effect of diffusion at worst, so you can just ignore it (but store it dry) and shoot with it Link to comment Share on other sites More sharing options...
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