Originally posted by ltdstar I don't have Pentax, but maybe you guy can try with battery grip and or external monitor to keep some of the heat outside the body, hopefully it'll keep the video running time a lil bit longer.
Tried this today on my morning commute. Running off a battery in the grip, random shot the cam in 4-6 min segments, playbacks, etc. Ran great for more than 20 minutes and probably could have gone on more, but it did the normal (save power) shutoff while in standby. Clicked the live view and it was back up no prob.
Thanks for the great tip.