I have been having trouble shooting video on my D3200 for 10-15 minutes the last 2 times I shot outside in direct sun on a hot day. The recording shuts off and will go back on if I turn it off for a few minutes, but will record for maybe 2-5 minutes, then shuts off again. I just did a test in the house in slightly cool conditions and the camera recorded for 15 minutes before I turned it off, I played back the video and I got all 15 minutes. So does heat on the camera affect how long it can shoot continuous video?