Hi I am relatvely new to photography, I bought a canon EOS 500D second hand with a 17-55mm lens, it works great. I also purchased a Sigma 70-300mm APO Macro lens. When I use the Sigma lens I get an Err 01 communication error clean lens. I have cleaned lens but error keeps coming back on. It still takes a photo but I have to turn camera off then on again. Any helpwould be appreciated
Two things: 1. Cleaning I assume you used a dry cloth to wipe off the gold contacts, even oil from your fingers can cause communication issues. 2. This is a discontinued lens, is this a film era lens? I think sigma had to rechip their lenses to work with modern dSLRs so that could also be the issue.
yeah I used a dry clean cloth to clean gold contacts,maybe you are right about the second problem. Thank you for your reply
It sounds like it's probably an older after-market lens compatibility issue. Although, sometimes with contact oxidation problems, alcohol wipes can help to thoroughly clean the contacts when I've found a lint-free clean dry cloth didn't seem to work. You'd probably want ones made for computers/electronics that have far less alcohol on them or 'wring out' more saturated ones to avoid any alcohol running or dripping onto anything else. Also, be sure to wipe off the contacts on BOTH the lens and very carefully inside the camera.
