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Messages - Jstaff

#1
Camera-specific Development / Re: Canon 600D / T3i
February 15, 2019, 09:10:40 PM
Hi Irv,

Thank you for the reply and good thought. However, I actually have a grip with battery holder. So yeah, no effect. Plus, that part of the camera isn't running hot.
#2
Camera-specific Development / OVERHEATING
February 12, 2019, 09:39:22 PM
NEW HERE, LOVING IT
TWO QUESTIONS ON BIT RATE AND OVERHEATING

Hi folks,

I installed the July 3, 2018 build for the 600D (the latest I think). Most things are work very well. I have just a couple of questions:

1. BIT RATE
Mostly interested in the higher bit rates for compression. When I use the default of 1.0. I am getting a bit rate readout on the LCD screen while filming of upper 30's. When I push that setting up to 2.0 or even 3.0 (audio off), it seems to only go up a bit to mid 40's. Now this is at a lower ISO. When I move to a higher ISO, 800 or so, then the increased bit rate numbers go way up to around 60.

I recall reading somewhere that the higher the ISO, the more headroom there is to increase the bit rate. Am I remembering that right? Does this beg the question, under what conditions is the increased BR best used for? I'm mostly looking to use it for studio work where I expect to keep the ISO to 200. Does a higher ISO's lower quality get offset by adding to its BR? And how does this effect green screen work?

Related, is there a visual of the ML LCD readout that diagrams what each element is? I get that the red boxes in the upper right are A:  Average BR, and B: Current BR. But I am not sure that the green box to the left or the box to the right is (maybe Q on that one, as it is often -16?). Boy these are hard to read, so small!!!

2. OVERHEATING
I am having issues with overheating. Even just sitting and not filming, the readout went up to:  56c / 131F / 201 raw. I tried moving the LCD away from the body, but no effect. (And neither the LCD or area behind it was warm anyway.)

When I was filming tests for 12 minutes, the temp display went up to 62C and shown in red (at standard 1.0 Bitrate). Though there were no other warnings and the camera did not shut down. I have no idea if this was always a problem or not, as I never knew the temps before ML gave me the readouts just now.  So....how concerned should I be? What temperature (in Celsius since that is the only LCD display) should I be worried about?

I have noticed the SD card was very hot after the filming. Could that be the source?

Thank you for your work, your generosity, and any light you can shed on these questions.

Oh, one last item:  Minor bug in that when trying to set the FPS over 30 (I think), every click would briefly display a different interface. It looked like Canon's picture style interface.

Best,
J