Canon Firmware

Firmware Updates for Canon EOS-1D Mark III, EOS-1Ds Mark III & EOS-1D Mark IV

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From Canon USA
Canon continues to update older professional DSLR bodies. I must say I’m pleasantly surprised they’re still supporting the Mark III bodies.


The following fixes have been incorporated in the new firmware

  1. Resolves the following phenomenon: when the camera is not attached to a lens, power consumption may be higher than usual, causing premature battery drain.
  2. Resolves a phenomenon in which “Err 02” may be displayed when the shutter is released without a lens attached.

Download the firmware


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