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@midnight:
Do you have the "automatic turn off" function of the camera on?
It could be possible that recording RAW video is not noticed by the Canon fimrware so it shuts itself of after 30 seconds of no use.
You can find this setting in the menu, if you go to the second screw-wrench. Standart would be 30 seconds.

I don't see any reason why the camera should shut down otherwise. Full buffer would just cause the Video recording to stop, or to slow down, similar to the burst mode with stills. (if I am not wrong)

solved! http://www.magiclantern.fm/forum/index.php?topic=6320.msg53598#msg53598

thanks, you too!

This sounds more like the normal functioning of the Canon firmware.  The Auto-off feature turns the camera of if you don't use it for 30 seconds (like when you don't take a picture in photo mode).  I think taking RAW video doesn't look to the Canon firmware that you are doing anything. It looks to the firmware like you are just sitting there with liveview running.

Try setting the the Auto-off time in the Canon Menu to something longer than the video you want to take.  I think there are options like 5 or 30 minutes.  I wouldn't disable it unless you need a video longer than the longest time.  I don't know which column it is in. you'll have to browse the menu.  likely one of the wrenches.

That was a clever answer. how stupid i am . now i'M trying it! thanks!

Edit: SUCCESS! i can record raw 1280x640 as long as i like. better res than this skips frames.

i have asked this here 2nd page: http://www.magiclantern.fm/forum/index.php?topic=5780.0

but some of you may not see it so i've copied my quiestion also here:


"Okay, i have managed to record my raw videos. i tested my 650d with 2 sd cards.

First one was a toshiba exceria 16gb 30mb/sec write speed. it recorded 1280x580 or something (not remember exactly) quite well. but for 26secs.

Second one was a Sony Sd card with 45mb/sec write speed. and i managed to record 1280x640 without frame skipping for 26 seconds again. after that camera shutted itself off. and i tried 1280x720 and it was going well for 7-9 seconds after that frame skipping started and if i remember correctly it skipped 13frames and recorded near ~400.

so i think the first problem is with the buffer size, yes? because after 26-27 seconds the camera shuts itself down..."

Okay, i have managed to record my raw videos. i tested my 650d with 2 sd cards.

First one was a toshiba exceria 16gb 30mb/sec write speed. it recorded 1280x580 or something (not remember exactly) quite well. but for 26secs.

Second one was a Sony Sd card with 45ms/sec write speed. and i managed to record 1280x640 without frame skipping for 26 seconds again. after that camera shutted itself off. and i tried 1280x720 and it was going well for 7-9 seconds after that frame skipping started and if i remember correctly it skipped 13frames and recorded near ~400.

so i think the first problem is with the buffer size, yes? because after 26-27 seconds the camera shuts itself down...

Please find a way to record at least 720p raw. i just saw how good raw videos look like and my jaw dropped on the floor. (i'm a newb 650d user)

i've read it up there 650d/700d has 50mb/s writing speed so it should be possible to have 720p raw :|

Please make it happen, beg ya.

thanks for the answers, i just realized i need to set my iso setting manually. (it was set to auto) now i can record HDR videos. thanks all.

Hi,

I just installed this to my 650d but i couldn't make it to record hdr videos, is this feature disabled on alpha version?

http://ae.tutsplus.com/tutorials/production/a-simple-way-to-shoot-hdr-video-footage-using-magic-lantern/

i found this tutorial to record hdr vids, as you can see there, i need to change the firmware from noob mode to advanced mode. but it seems it is disabled on alpha right? no?