Category Archives: 7d

Canon 7d – ERR20 – again and again


This 7d has been repaired a few months ago with an ERR20 error code after each shooting. ERR20 could mean many different problems, here is he internal ode: Interesting is, that, the internal error 215 is Mirror position problem, as … Continue reading

Posted in 7d, Canon camera | Leave a comment

7d flash overexposure – RTFM, RTFM, and again: RTFM


I repaired a 7d for somebody (a faulty rotary switch, and a general internal cleaning, with glueing the flying screw, which was of course on the side of the shutter motor), and after assembling it I checked the general functions … Continue reading

Posted in 40d, 7d, Canon camera, flash/strobe | Leave a comment

Canon 7d – search for the screws!


I repaired only 5 pieces of 7d cameras. Some of them were giving no sign of life at all, others sometimes worked normal, sometimes not. But there was one common point in all of this cases: there was a free … Continue reading

Posted in 7d, General topics | 13 Comments