Just wondering if anyone would have an idea of what caused this (see image below). The beginning of the interview had no problems. About 5 minutes in it slowly became soft and a double image appeared. It took about 1 minute for this to happen. After about a min, the image slowly cleared up and went back to normal.
I initially thought it could have been condensation on the lens, but the double image didn't appear until just over 5 minutes into the interview. Condensation would have appeared almost immediately after taking the camera outside.
Some specs about the camera settings: F-stop 2.6. Shutter 1/60. Image stabilizer off. The camera was locked down on a tripod with no operator. Auto exposure, auto focus.