Bruce Herbert Posted June 4, 2023 Share Posted June 4, 2023 Hi, just wondering if this mark is fungus, or just cleaning marks? Not so much just the straight lines, but the little blobby shapes too, which are a bit hard to photograph, sorry... Thanks, Bruce Link to comment Share on other sites More sharing options...
Premium Member Dom Jaeger Posted June 4, 2023 Premium Member Share Posted June 4, 2023 Looks more like lots of fine coating scratches. Fungus has a tendril or spiderweb sort of look. Link to comment Share on other sites More sharing options...
Premium Member Dom Jaeger Posted June 4, 2023 Premium Member Share Posted June 4, 2023 This is fungus: Link to comment Share on other sites More sharing options...
Bruce Herbert Posted June 4, 2023 Author Share Posted June 4, 2023 Thanks Dom. Will that affect the performance of the lens? e.g. is that an indication that the coating is actually missing on the front element? Link to comment Share on other sites More sharing options...
Premium Member Dom Jaeger Posted June 4, 2023 Premium Member Share Posted June 4, 2023 Yes it will lower the contrast a little and make the lens a bit more prone to flaring, otherwise it shouldn’t be too big a deal. Link to comment Share on other sites More sharing options...
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