Jump to content


Photo

Fluorescing teeth and eye whites--why?

Light wavelength video recording broadcast television

  • Please log in to reply
3 replies to this topic

#1 Richard_Swearinger

Richard_Swearinger
  • Basic Members
  • PipPip
  • 15 posts
  • Other
  • Des Moines Iowa

Posted 01 January 2015 - 04:54 PM

During a couple of recent broadcasts, notably "Peter Pan" on NBC, I've noticed some pretty vivid fluorescing from the teeth of the talent. It was most vivid on the actor who played Peter Pan and was even mentioned by a couple of the TV critics. I've also seen the whites of eyes doing it as well. 

 

Do we know what causes this to happen? Is it an effect that is being used incorrectly? Is it something to do with the latest generation of camera sensors? Is it lighting related? Is it a chemical thing—something in the teeth whiteners or tooth veneers that is causing this? Is it only with broadcast-style cameras? 

 

And, of course, Is there a way to avoid it? 

 

Thanks


  • 0

#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 19840 posts
  • Cinematographer
  • Los Angeles

Posted 01 January 2015 - 05:01 PM

It comes from using lights with a heavy UV output which interacts with things containing phosphors. Sometimes UV lights are used deliberately in stage shows if the production design employs elements that will glow under them, but it could also just be coming from deep purple-blue stage lights that have a certain amount of UV. That's just a guess.
  • 0

#3 Bill DiPietra

Bill DiPietra
  • Sustaining Members
  • 2339 posts
  • Cinematographer
  • New York City

Posted 01 January 2015 - 05:04 PM

During a couple of recent broadcasts, notably "Peter Pan" on NBC, I've noticed some pretty vivid fluorescing from the teeth of the talent. It was most vivid on the actor who played Peter Pan and was even mentioned by a couple of the TV critics. I've also seen the whites of eyes doing it as well. 

 

Do we know what causes this to happen? Is it an effect that is being used incorrectly? Is it something to do with the latest generation of camera sensors? Is it lighting related? Is it a chemical thing—something in the teeth whiteners or tooth veneers that is causing this? Is it only with broadcast-style cameras? 

 

And, of course, Is there a way to avoid it? 

 

Thanks

 

I'm wondering if it may be due to the new fluorescent technology.  I hear that the flicker-rate is twice as fast as it used to be and it caused my mom to have some problems with her eyes a few weeks ago.  The eye-doctor said it is directly related to that kind of lighting.


  • 0

#4 Richard_Swearinger

Richard_Swearinger
  • Basic Members
  • PipPip
  • 15 posts
  • Other
  • Des Moines Iowa

Posted 02 January 2015 - 11:09 AM

Great stuff. Thanks. Since it's NBC one assumes they're using just plain old Kinos or Lightpanels. But maybe not. The other place I saw this phenomenon was Carson Daiy's eyes on the NBC new year's countdown. I'll poke around for production details and see if I can find out anything.


  • 0



Also tagged with one or more of these keywords: Light, wavelength, video recording, broadcast television

FJS International, LLC

Broadcast Solutions Inc

Gamma Ray Digital Inc

Glidecam

Media Blackout - Custom Cables and AKS

Aerial Filmworks

Visual Products

CineTape

The Slider

Metropolis Post

rebotnix Technologies

Paralinx LLC

Technodolly

Abel Cine

Rig Wheels Passport

Tai Audio

Willys Widgets

Wooden Camera

CineLab

Ritter Battery

Opal

The Slider

Media Blackout - Custom Cables and AKS

Ritter Battery

Wooden Camera

Abel Cine

Glidecam

Gamma Ray Digital Inc

Metropolis Post

CineTape

Technodolly

Opal

CineLab

Tai Audio

FJS International, LLC

Rig Wheels Passport

Paralinx LLC

Broadcast Solutions Inc

Aerial Filmworks

Willys Widgets

Visual Products

rebotnix Technologies