“Error 01 , communication between camera and lens faulty. Clean lens contact” 

After cleaning the owner brings the lens to the service (to me, for example), and we repair the broken cable or whatever. I have never seen a case when cleaning helped.
Till now.
the lens was a simple 18-55 is – everybody knows, that the focus feedback cable breaks after a certain time, and then no photos more possible. the owner told me something about problems by shooting, I DIDN’T CHECKED IT, i just rushed on the lens, to change the cable. but it was not bad… oupppps.
after assembling, disassembling it i started to believe, what i have seen: no aperture value on the lcd… at last i observed, that the contacts are pretty oxidized.
i cleaned them – and what a surprize: no failure 🙂

trust canon! trust the error codes! (ok, it was just a joke)


About canonrepair

Ruzsa János. Amatőr fotós, Canon DSLR váz. Amateur photographer. Canon DSLR user.
This entry was posted in Canon lens, General topics. Bookmark the permalink.

5 Responses to “Error 01 , communication between camera and lens faulty. Clean lens contact” 

  1. Peter says:

    What are You using for cleaning the contact?

  2. Peter says:

    What are you use for cleaning the pins?

    • canonrepair says:

      white spirit, brake cleaner, contact cleaner, rust-remover, phosforic-acid, sand-paper, cutter-knife – depends on the case.

      • Peter says:

        I’m asking, couse I have a brand new EOS 70d, and an old Sigma 400mm F5.6 Apo Macro HSM lens, and in room conditions everything is ok, the lens working correctly at 5.6. But as i going for outside, below 0C, I got the usual ERR01. For me, the connections seems everything is ok.

      • canonrepair says:

        in this case I rather think, there could be a contact problem (for example a so called cold soldering point, which means a broken soldering connection) on the board of the lens.
        try it on another camera.

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