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I have a new Canon EOS Kiss camera and a friend of mine has a Sigma Aspherical IF 28-200mm lens she used on an old Canon EOS film camera (old as in 10 years or so). I tried using the lens on my camera. The auto focus worked fine but when I tried to take a picture the camera froze with the following error:

Err 01

Communications between the camera and lens is faulty.
Clean the lens contacts.

I don't think my contacts need cleaning because the camera works fine with a 18-55mm lens.

How can I solve this issue?

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6 Answers 6

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Is it a third-party lens or a Canon one? It is a well known fact that some older Sigma lenses in particular have problems with the electronic interface with newer Canon camera bodies.

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  • \$\begingroup\$ I know Sigma will sometimes "re-chip" older lenses to work with newer cameras — do you think that might be a possibility here? \$\endgroup\$
    – mattdm
    Commented Jun 2, 2012 at 14:12
  • \$\begingroup\$ I have no personal experience with this.. I know a lot of people had it done some years ago (I think compatibility was OK with the classic EOS 1D and broke after that, so it has been a while). Don't know if Sigma still offers this service, for such an old lens. If it's a 150 dollar 70-300 piece of junk I doubt it would be worth the effort in any case :) \$\endgroup\$
    – Staale S
    Commented Jun 2, 2012 at 21:24
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I don't think my contacts need cleaning because the camera works fine with a 18-55mm lens.

You could try cleaning the other side of the contact point, that being the contacts on the lens.

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This is old question but problem is still actual on old lenses. What you need is protocol interface which converts aperture change command from camera to lens. Please see my article at this link where is problem cause and it's solution described in detail http://butterflybikers.cz/index.php/cz/elektronika/item/1-canon-eos-protocol-convertor-for-old-sigma-lens .

For those who don't want to read whole article I will try to describe problem in short. Old EOS cameras (at moment we can say very old) was using different digital command on SPI bus which tell lens to adjust aperture to some value. For some reason Canon changed that command (old was 0x12 new is 0x13). Result is that your old 3rd party lens is unable to set aperture so gets ERROR 01 because camera cannot set aperture in lens. Solution is easy, add processor to signal path which will convert new command to old one so lens will understand it. See link above for more technical details, HW and SW sources.

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    \$\begingroup\$ can you please summarise the content of the link in your answer. Also, are you associated with that site? If so, please disclose. \$\endgroup\$
    – damned truths
    Commented Mar 19, 2015 at 11:19
  • \$\begingroup\$ Yes I'm author of article on that site, tell me if post should be removed. \$\endgroup\$
    – j.otisk
    Commented Mar 20, 2015 at 10:34
  • \$\begingroup\$ You need to add that information into your post, including the disclosure. \$\endgroup\$
    – damned truths
    Commented Mar 21, 2015 at 4:13
  • \$\begingroup\$ Added that information and hoved short description into answer to make it more clear. Thank you for guidance. \$\endgroup\$
    – j.otisk
    Commented Mar 22, 2015 at 6:59
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I have the same lenses and the same problem, but I noticed that if you open the aperture to 5.6 (200mm) you can take photos... you have to fully open the aperture on manual settings. If the size is bigger, you have Error 1.

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I use a thin extension tube with no contacts. Is all manual now but usable.

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    \$\begingroup\$ Did you lose the ability focus to infinity? \$\endgroup\$
    – scottbb ♦
    Commented Mar 29, 2018 at 14:02
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Use a tape over the electrical contact of your lens. Then use as a manual lens.

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