7D Heat Warning

So, Luis... Sounds like you are saying that perhaps the heat warning is more likely to happen in 720 than it is 1080?

Or maybe it's a framerate thing... you said 60p in 720 was overheating, but 24p in 1080 was ok? Maybe 60fps is pushing the sensor...
 
Luis Caffesse said:
Probably - but given that a short while earlier I had shot those 12 minutes 720/60p clips back to back and gotten the heat warning light - I didn't feel I needed to see that light come on again.

I'll let someone else burn their pixels.
:)
Click to expand...

Heh, fair enough. I guess it's easy for me to discount the danger and concern when it's not my 7D that is melting in my hands.

My 7D isn't even in my hands yet, let alone getting enough use for it to overheat. :undecided
 
Jason Ramsey said:
So, Luis... Sounds like you are saying that perhaps the heat warning is more likely to happen in 720 than it is 1080?

Or maybe it's a framerate thing... you said 60p in 720 was overheating, but 24p in 1080 was ok? Maybe 60fps is pushing the sensor...
Click to expand...

I think that is absolutely the case.
I may try it again tomorrow...just to make sure.
 
Ha - sorry - seemed clear to me.... framerate.
Firing that sensor off 60 times per second versus 24 just has to be much more taxing.

What I may do is shoot some long clips at 1080 and see how long it takes to get the heat icon, then let it cool off and shoot 720/60.
 
Uhm yeah, that's understood, but the 5D mark 2 showed similar issues with overheating. You've been following the thread too, right?

If anything, the 5D mark 2 would be more prone to overheating since the sensor is so much larger.

If the past is any indication, the astrophotography guys always had more problems using the 5D than something smaller, like say a Rebel. The Two digic processors are unlikely to have any effect on heat as the sensor.
 
Well.. i think the dual processor feature is the main suspect on this issue, but then again, its also resposible for allowing the 7D to shoot in 60p and full HD. I can only guess that the sensors data flow is greater at 720/60p due to the double feature task it has to do... Rezising, and cranking up to 60p, while at 1080/24p = Less rezising, and less fps to process.. (that without mentioning all the anti-alias, de-noising, color profiling.. etc.. etc.. it has to do at both modes..)

Some people have said that it heats faster at 480/60p wich quite confirms that the extra rezising only make the heating issue worse..

BUT, we cant leave behind, the CF. Its as guilty as the dual processor feature... Continous transfer heats up the pot.
 
I seriously think its more to do with the Size of the sensor, and the rate at wich you scan it...
 
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