500D and sigma lens

Discussion in 'Beginner Questions' started by flash, May 22, 2020 at 9:56 AM.

  1. flash

    flash New Member

    Joined:
    Friday
    Messages:
    2
    Equipment:
    Canon EOS 500D
    Canon EFS 18-55mm
    Sigma 70-300 APO Macro
    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
     

  2. johnsey

    johnsey Site Moderator Staff Member Site Supporter

    Joined:
    Apr 21, 2017
    Messages:
    669
    Location:
    Fargo, ND
    Equipment:
    5dMk4, 5dMk2, 20D, 70-200 2.8L IS, 100mm 2.8 Macro USM, 50mm 1.4, 85mm 1.8, 17-40mm 4.0L, Rokinon 14mm 2.8; Pixma Pro-100
    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.
     
  3. flash

    flash New Member

    Joined:
    Friday
    Messages:
    2
    Equipment:
    Canon EOS 500D
    Canon EFS 18-55mm
    Sigma 70-300 APO Macro
    yeah I used a dry clean cloth to clean gold contacts,maybe you are right about the second problem. Thank you for your reply
     

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