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
  • 20074 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


Technodolly

Paralinx LLC

Tai Audio

Willys Widgets

CineLab

rebotnix Technologies

Aerial Filmworks

Abel Cine

CineTape

Glidecam

Rig Wheels Passport

Metropolis Post

Visual Products

Ritter Battery

The Slider

Gamma Ray Digital Inc

FJS International, LLC

Broadcast Solutions Inc

New Pro Video - New and Used Equipment

Wooden Camera

Media Blackout - Custom Cables and AKS

Ritter Battery

CineLab

FJS International, LLC

Visual Products

Rig Wheels Passport

Metropolis Post

CineTape

rebotnix Technologies

Tai Audio

Gamma Ray Digital Inc

New Pro Video - New and Used Equipment

Media Blackout - Custom Cables and AKS

Paralinx LLC

Technodolly

The Slider

Willys Widgets

Glidecam

Wooden Camera

Abel Cine

Broadcast Solutions Inc

Aerial Filmworks