Jump to content


Photo

red in qatar at 40 celcius...


  • Please log in to reply
9 replies to this topic

#1 Elias Haswany

Elias Haswany

    New

  • Basic Members
  • Pip
  • 8 posts
  • Cinematographer
  • Middle East / Europe

Posted 31 August 2009 - 09:02 AM

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
  • 0

#2 Chris Keth

Chris Keth
  • Sustaining Members
  • 4427 posts
  • 1st Assistant Camera
  • Los Angeles

Posted 01 September 2009 - 11:09 PM

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.
  • 0

#3 Elias Haswany

Elias Haswany

    New

  • Basic Members
  • Pip
  • 8 posts
  • Cinematographer
  • Middle East / Europe

Posted 02 September 2009 - 06:14 AM

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
  • 0

#4 Chris Keth

Chris Keth
  • Sustaining Members
  • 4427 posts
  • 1st Assistant Camera
  • Los Angeles

Posted 02 September 2009 - 11:48 AM

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?
  • 0

#5 Elias Haswany

Elias Haswany

    New

  • Basic Members
  • Pip
  • 8 posts
  • Cinematographer
  • Middle East / Europe

Posted 02 September 2009 - 12:48 PM

since I am not recording audio, the fans were set to Hi. besides, we will be rolling at 120fps...
  • 0

#6 Chris Keth

Chris Keth
  • Sustaining Members
  • 4427 posts
  • 1st Assistant Camera
  • Los Angeles

Posted 02 September 2009 - 03:14 PM

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.
  • 0

#7 ian mussell

ian mussell
  • Basic Members
  • PipPip
  • 15 posts
  • Grip

Posted 02 September 2009 - 03:16 PM

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
  • 0

#8 Elias Haswany

Elias Haswany

    New

  • Basic Members
  • Pip
  • 8 posts
  • Cinematographer
  • Middle East / Europe

Posted 02 September 2009 - 05:17 PM

thanks guys,

the real test is two days,

will keep you posted on all issues

regards,

Elias.
  • 0

#9 Aileen M Taylor

Aileen M Taylor
  • Basic Members
  • PipPip
  • 13 posts
  • 1st Assistant Camera
  • New York, NY

Posted 02 September 2009 - 08:06 PM

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.
  • 0

#10 Elias Haswany

Elias Haswany

    New

  • Basic Members
  • Pip
  • 8 posts
  • Cinematographer
  • Middle East / Europe

Posted 03 September 2009 - 04:30 AM

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
  • 0


Technodolly

Ritter Battery

Gamma Ray Digital Inc

rebotnix Technologies

Paralinx LLC

CineLab

Broadcast Solutions Inc

Rig Wheels Passport

Visual Products

FJS International, LLC

Metropolis Post

Opal

Wooden Camera

Glidecam

The Slider

Media Blackout - Custom Cables and AKS

CineTape

Willys Widgets

Tai Audio

Aerial Filmworks

Abel Cine

Aerial Filmworks

Technodolly

FJS International, LLC

Willys Widgets

Gamma Ray Digital Inc

Media Blackout - Custom Cables and AKS

Tai Audio

Visual Products

Paralinx LLC

Glidecam

Broadcast Solutions Inc

Wooden Camera

Opal

rebotnix Technologies

Abel Cine

Rig Wheels Passport

CineTape

Metropolis Post

CineLab

The Slider

Ritter Battery