Recording RAW for extended periods of time?

[MarkusAedo]

Hey guys,

I have a talkinghead/interview shoot I'm looking to shoot with Magic Lantern. We have plenty of CF cards and we're going to be using external power source. My question is has anyone run into any problems recording RAW for extended periods of time? I'm aware of the issue if you record longer than the card can carry, but should I be worried about overheating or damage to the sensor? My current max is roughly 3 minutes. Wondering if anyone can offer any help, or suggestions.

Thanks!

[Walter Schulz]

Depending on environment and camera type overheating may or may be not an issue. 50D is known to have troubles with overheating. All cams will turn off if temperature limit has been reached.
Heat sinks may be helpful or not.

[budafilms]

I have shooted 50 GB of RAW continuing and no problem. You can get a lot of pink or black pixels for overheating. More if you use a high ISO.
For me was a big problem to resolve these pixels. And no post software gave me a solution.

So, more than 50 degrees celsius, I prefer shut down the camera and wait.

[beauchampy]

I use my mk3 to record raw for 45mins at a time (two 128gb cards @ 24p), never a problem.

[Lars Steenhoff]

@budafilms 
Which build gave you the pink pixels?   ( canon 5d3 ? )

[budafilms]

Yes. 5d3.
Don't remember the build Was in December 2015.