Recent content by 12044919

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    Sigma 50-500 with OS - Terrible Dust Issue

    Hi, My sigma 50-500 OS with canon mount has a lot of dust in between the first and second elements from the front. Please find link to a series of images that show how I have tried to open the 1st and the second element. Purpose of both are the same. To get in between the first and the second...
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