Jump to content


Photo

Triggering Rainbow Streaks?


  • Please log in to reply
1 reply to this topic

#1 Macks Fiiod

Macks Fiiod
  • Basic Members
  • PipPipPipPip
  • 1476 posts
  • Director
  • Og from DC, Now in NJ

Posted 17 July 2018 - 09:47 PM

You know how when you shine a light at a flatscreen TV that's turned off and you see those rainbow streaks going in 4 directions? Was just wondering what ways there are to trigger that rainbow spectrum projection onto a background for a killer high-saturation shot.

 

Shining a 300w through a special piece of optics?

 

Is there something in cinema specifically for this? Is there a common household trick I'm ignorant to?

 

Thanks!


  • 0

#2 Phil Rhodes

Phil Rhodes
  • Sustaining Members
  • 12276 posts
  • Other

Posted 18 July 2018 - 02:03 PM

Diffraction grating. I'm not aware of them being used as filters for high power lighting, though. The type depicted below would not handle any useful amount of light.

 

s-l640.jpg

 

Simulate it with a video or slide projector?

 

 

 

P


  • 0


FJS International, LLC

Media Blackout - Custom Cables and AKS

Aerial Filmworks

Glidecam

Wooden Camera

Gamma Ray Digital Inc

Rig Wheels Passport

Technodolly

Tai Audio

Paralinx LLC

CineTape

rebotnix Technologies

Ritter Battery

The Slider

Metropolis Post

New Pro Video - New and Used Equipment

CineLab

Abel Cine

Willys Widgets

Broadcast Solutions Inc

Visual Products

Technodolly

Wooden Camera

Abel Cine

FJS International, LLC

Aerial Filmworks

Ritter Battery

Broadcast Solutions Inc

Tai Audio

CineTape

Paralinx LLC

CineLab

The Slider

Visual Products

Glidecam

rebotnix Technologies

Willys Widgets

Rig Wheels Passport

New Pro Video - New and Used Equipment

Media Blackout - Custom Cables and AKS

Metropolis Post

Gamma Ray Digital Inc