Originally posted by Adam The two most likely explanations are inadvertent activation of multiple exposure mode, or hand-held use of pixel shift.
If neither of these apply, it could be something else, including possibly a busted SR system (this is rare). What lens were you using?
Per the EXIF it also looks like you were shooting at F16, which will degrade your image quality and increase the likelihood of a shutter speed that can cause motion blur.
Hi Adam, thanks for your reply.
I was using the 16-85mm, never had problems with this combination before.
The problem has occurred in shots with varying focal lengths, exposure times and apertures. None of them should realistically have had any noticeable motion blur (no extreme tele shots, no long exposure times, etc.). In fact all of the shots affected by this could easily have been shot hand-held without shake reduction, without causing motion blur.
Inadvertent pixel-shift or multiple exposure seems highly unlikely. I've taken thousands of shots with this camera with no problems, and now suddenly a fairly high percentage of shots is ruined by this blur. Also, usually taking the same shot immediately after, with exactly the same settings, solved the problem.