Just posted this in the thread on the Mark II.
I noticed this sporadic shutter on my T2i the other day. I thinking I’m wrong about my class 4 being okay (I know they are below spec) in my last time it was really hot outside, close to 100 degrees. I’m getting Transcend cards at Class 6 now.
What type of cards are you using? 24p should be shot at 1/48 of a sec. 1/30 will give you extra blur. 24p does need to be panned very slow but if we are all describing the same thing it is not a too fast pan. It seems to be a write issue. For me I have to blame the cards first since they are under spec. What about you.