Elias Haswany Posted August 31, 2009 Share Posted August 31, 2009 I am shooing four days exterior in Doha with a red camera, the temperature in the shade is 41 celcius, I asked for large ventilators for the camera and crew, Do I need to worry about backfocus issues when the camera heats up to these temperatures? or have I got other and more pressing worries ahead? Elias Haswany MENA based DP Link to comment Share on other sites More sharing options...
Premium Member Chris Keth Posted September 2, 2009 Premium Member Share Posted September 2, 2009 I am shooing four days exterior in Doha with a red camera, the temperature in the shade is 41 celcius, I asked for large ventilators for the camera and crew, Do I need to worry about backfocus issues when the camera heats up to these temperatures? or have I got other and more pressing worries ahead? Elias Haswany MENA based DP I've used the RED in those kinds of temperatures without problems. Just keep the camera fan on the auto mode where it will turn the fan up high in between takes. Whenever possible, give the camera a courtesy to keep it in the shade. Backfocus shouldn't be too big a problem. I don't know if it gets cold at night there like it does in the desert here, but that may present a bit of a problem with the fast, drastic temperature change in that kind of situation. In my experience, the RED's PL mount is pretty stable. Just check that the screws that hold the mount to the body every morning as part of your routine. The only problems I've had are with those working their way loose slowly. Link to comment Share on other sites More sharing options...
Elias Haswany Posted September 2, 2009 Author Share Posted September 2, 2009 I did a small test today, ran the camera at 41 degrees ambient, with both LCD, viewfinder and red drive connected and camera rolling... after about 50mins the camera reported temp Hi... but it did not stop recording.. I gave it a 10 mins break, afterwards it ran for about 20 mins before it performed a reboot (not necessarily heat related), after the reboot, the battery was at about 23% so I decided to replace it, ran the camera again for thirty mins, it reported temp Hi again, but did not stop recording. at this stage there was no more point it torturing the camera further and that the next step for me is to get a mobile air-conditioning unit and keep it next to the camera whenever possible. surely, I will, as Chris suggested, check the PL mount screws, as a routine check.. regards Elias Mena based DP Link to comment Share on other sites More sharing options...
Premium Member Chris Keth Posted September 2, 2009 Premium Member Share Posted September 2, 2009 That's a pretty positive test. I've had that spontaneous reboot thing happen before, and in all kinds of environments. I think you're right when you say it's not necessarily heat related. Your test was with the fan settings such that the fan runs on high between takes and then goes silent during? Link to comment Share on other sites More sharing options...
Elias Haswany Posted September 2, 2009 Author Share Posted September 2, 2009 since I am not recording audio, the fans were set to Hi. besides, we will be rolling at 120fps... Link to comment Share on other sites More sharing options...
Premium Member Chris Keth Posted September 2, 2009 Premium Member Share Posted September 2, 2009 since I am not recording audio, the fans were set to Hi. besides, we will be rolling at 120fps... Even better for you that you can run the fan all the time. Link to comment Share on other sites More sharing options...
ian mussell Posted September 2, 2009 Share Posted September 2, 2009 I'm a grip based in dubai, we shoot on red here a lot in temperatures up to 54c in the shade! in my experience it's not much less stable than a 435 as far as dealing with the heat goes. hope your shoot goes well! Ian mussell Link to comment Share on other sites More sharing options...
Elias Haswany Posted September 2, 2009 Author Share Posted September 2, 2009 thanks guys, the real test is two days, will keep you posted on all issues regards, Elias. Link to comment Share on other sites More sharing options...
Aileen M Taylor Posted September 3, 2009 Share Posted September 3, 2009 I've had to put ice "saddle bags" on the RED in the past because it shut down from overheating. Two freezer bags tied with some trick line on either side of the camera did the job, it rebooted after about 10 minutes and then I just kept a good bag rotation until the environment cooled down. Hopefully you won't have that problem though. Link to comment Share on other sites More sharing options...
Elias Haswany Posted September 3, 2009 Author Share Posted September 3, 2009 you're spot on, Aileen I have the same ice saddle bags, and will be counting on those... RED should have engineered a passive radiator built into the housing, right below the top handles. maybe someone would pickup on that and make it as a retrofit. Elias Link to comment Share on other sites More sharing options...
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