Jump to content


Photo

(strange) polarizer compensation


  • Please log in to reply
1 reply to this topic

#1 Thomas Cousin

Thomas Cousin
  • Basic Members
  • PipPip
  • 74 posts
  • Cinematographer
  • Paris, France

Posted 29 July 2005 - 10:33 AM

Hello,
when i use a polarizer, i just compensate 1,7 stop = 1 stop and 2/3. That's how i learned to use it and it seems to work fine like this.
Lately i was told that some DPs compensate from 1,7 to 2 full stops, according to the position (rotation) of the filter !! they rotate the pola, find the position , then take a reflected measure whit the spotmeter through the pola ! I never heard of that kind of practice.
does somebody here use it like that. am i the only one to find this method strange and useless ?
:blink:
bye

thomas
  • 0

#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 19759 posts
  • Cinematographer
  • Los Angeles

Posted 29 July 2005 - 10:43 AM

I don't do that but I can see making more of a compensation if a LOT of the frame is darkened by a polarizor, like a low-angle shot of someone framed against blue sky. When the background gets very dark, the shot can feel underexposed even though it isn't, so I would probably overexpose the subject slightly against it.
  • 0


Aerial Filmworks

Wooden Camera

Visual Products

FJS International, LLC

Willys Widgets

Abel Cine

CineLab

Rig Wheels Passport

CineTape

Technodolly

rebotnix Technologies

Tai Audio

Ritter Battery

The Slider

Broadcast Solutions Inc

Glidecam

Metropolis Post

Gamma Ray Digital Inc

Opal

Paralinx LLC

Media Blackout - Custom Cables and AKS

CineTape

Paralinx LLC

Tai Audio

The Slider

Willys Widgets

FJS International, LLC

CineLab

rebotnix Technologies

Wooden Camera

Rig Wheels Passport

Media Blackout - Custom Cables and AKS

Visual Products

Gamma Ray Digital Inc

Abel Cine

Ritter Battery

Glidecam

Opal

Metropolis Post

Broadcast Solutions Inc

Technodolly

Aerial Filmworks