Jon Carr
Well-known member
The 7D can do 12 min takes, higher ISO can reduce overall recording time. I once had the 7D record past 20 minutes but the high temp signal was coming up, and to get that long of take it was basically recording total black, whiter the image=more infomation. Reason why the 7D can only record 4.79 GB max for a take which on average is 12-13 min with the 7D. So on average the longest takes you can take with the 7D is 12-14min. your 16gb card should be fine for 45-50 minutes.