I was shooting video with my Rebel T2i (Canon 50mm 1.4 lens) when I got an error saying:

Err 70

Shooting is not possible due to an error.
Turn the camera off and on again or re-install the battery.

I reset camera settings, took the battery out, formatted the memory card, and still haven't had any luck. Any help would be appreciated.


  • \$\begingroup\$ First place you should have checked is attached CD that has troubleshooting application... \$\endgroup\$
    – peter_budo
    Oct 4, 2011 at 5:59
  • \$\begingroup\$ Have you tried an additional memory card? \$\endgroup\$
    – Roflo
    Oct 22, 2012 at 22:32
  • \$\begingroup\$ Solution I found for Canon 7D... reikan.co.uk/photography/blog/?p=1550 \$\endgroup\$
    – user21784
    Aug 24, 2013 at 15:13

1 Answer 1


From some google searching I've found this to be a common problem, specially for higher end bodies like 5D Mark II.

If this continues to happen even after you did what the camera instructed you to do, its best you send it back to Canon for a check. If its still under warranty, they'll fix it or replace it.

Also, did you upgrade your firmware or add a grip? Some people reported this error after they started using a grip or after they upgraded their firmware.


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