Question about Canon 24-85mm f/3.5-4.5 EF USM Lens
How to unassemble canon ef 24 85mm lens to clean all dust ?
CAUTION! DO NOT EVEN THINK ABOUT DISASSEMBLING YOUR LENS. In 1964, I made the mistake of doing the same thing for a single focal-length lens for my Nikon F. This lens did not even approach the mechanical complexity of a modern zoom lens. Lenses are put together like jigsaw puzzles. I removed one screw and found to go further, I needed to do another. In fifteen minutes, the lens was in 50 pieces on the table. It cost over $175 to have a camera repair man reassemble it. This was a a time when the top of the line Nikon sold for $300 vs. $5000 today. Usually dust between elements does not affect performance, but if it is degrading your pictures, take the lens to a professional. This is not a job for an amateur.
Posted on Nov 28, 2008
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Posted on Jan 02, 2017
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