Jump to content


Photo

HMI & CTO


  • Please log in to reply
1 reply to this topic

#1 Nick Centera

Nick Centera
  • Basic Members
  • PipPip
  • 88 posts
  • 2nd Assistant Camera
  • San Diego

Posted 27 January 2012 - 04:07 AM

Hey, I am going to be shooting an outdoor, on location, night scene. I will be shooting on 35 tungsten and was wanting to use HMI's to help with gaining most of the moonlight and also for the higher output of light. I do not want the scene to be completely blue so I was thinking of putting a slight CTO, maybe a 1/4 to help reduce the blue. I have read that it is pretty inefficient to CTO HMI's but I am not someone who likes to "fix it in post." Please let me know your thoughts. Thank you

Nick
  • 0

#2 M Joel W

M Joel W
  • Basic Members
  • PipPipPipPip
  • 268 posts
  • Student

Posted 27 January 2012 - 01:50 PM

1/4 CTO should eat almost no light. I think 3/4 CTO (which brings HMIs to 3200K) eats maybe 2/3 stop? Way less than CTB.

If you're lighting ONLY with HMIs, this seems like something you could do in post very easily. There are other colors you could use, too. I forget what they used in Pan's Labyrinth but I think it was some sort of green/teal gel? Could be totally wrong but that looked great. HMIs vary pretty significantly in color temperature so you could easily have one at 6000K+ and another around 5000K. So some might need more CTO (and possibly some minus green) than others.

Edited by M Joel Wauhkonen, 27 January 2012 - 01:51 PM.

  • 0


rebotnix Technologies

Metropolis Post

Media Blackout - Custom Cables and AKS

CineTape

Ritter Battery

Broadcast Solutions Inc

Rig Wheels Passport

The Slider

Wooden Camera

Gamma Ray Digital Inc

Tai Audio

Visual Products

Abel Cine

Technodolly

CineLab

Opal

Aerial Filmworks

Paralinx LLC

Willys Widgets

Glidecam

FJS International, LLC

CineTape

Rig Wheels Passport

CineLab

Ritter Battery

Technodolly

Glidecam

Gamma Ray Digital Inc

rebotnix Technologies

Broadcast Solutions Inc

Wooden Camera

Aerial Filmworks

Media Blackout - Custom Cables and AKS

Willys Widgets

Paralinx LLC

Opal

FJS International, LLC

Tai Audio

Metropolis Post

The Slider

Abel Cine

Visual Products