Sigma 70-300 4-5.6 DL has some fungus & blur
My 70-300 4-5.6 DL has some fungus & blur on the inside of the last internal lens . How can I fix it ? Where can I find the service manual ?
Cameras - Sigma - AF 70-300mm f/4.0-5.6 DL Macro Super Lens for Canon-EOS
Answers & Comments
Fungus etches the glass. This cannot be fixed by just removing the fungus. The lens has to be resurfaced, calibrated, coated and
well, you get the idea. lots of expensive precision equipment and a jig to recalibrate the focusing after you do all that.
Another 70-300 on Ebay is much less expensive.