Jump to content



Photo

Black and White Viewfinders


  • Please log in to reply
1 reply to this topic

#1 Ashim

Ashim
  • Basic Members
  • PipPip
  • 81 posts
  • Other

Posted 24 October 2006 - 10:03 AM

Hi,

I've often heard people say that they prefer B&W viewfinders because they help them in judging the focus better. How does a B&W viewfinder help in making critical focus decisions easier????????
  • 0

#2 John Ealer

John Ealer
  • Sustaining Members
  • 187 posts
  • Cinematographer
  • Los Angeles, CA

Posted 24 October 2006 - 10:41 AM

Hi,

I've often heard people say that they prefer B&W viewfinders because they help them in judging the focus better. How does a B&W viewfinder help in making critical focus decisions easier????????



It's a matter of biology. In the retina there's a much higher density of rod receptors (which, roughly speaking, sense brightness) versus cone receptors, which sense color. In essence, we see brightness in more detail than color. Adding color to the viewfinder basically makes our perception a bit less sharp, hence harder to see focus.

This natural predisposition for the eye to see brightness in more detail than color is the principle which underlies pretty much every chroma-subsampling scheme ever developed. The whole reason for 4:2:2 and 4:1:1 style chroma subsampling (instead of using straight RGB) is to use the bandwidth available in the video system to deliver information that's tailored to the human eye's ability to see it. In other words, not wasting bandwidth recreating detail we couldn't perceive (or wouldn't notice if it's missing) anyway.

J
  • 0


CineLab

Metropolis Post

Tai Audio

Rig Wheels Passport

Gamma Ray Digital Inc

Visual Products

Wooden Camera

Ritter Battery

New Pro Video - New and Used Equipment

Glidecam

Paralinx LLC

Abel Cine

FJS International, LLC

Broadcast Solutions Inc

Media Blackout - Custom Cables and AKS

Metropolis Post

Ritter Battery

Paralinx LLC

CineLab

Tai Audio

Glidecam

Media Blackout - Custom Cables and AKS

Gamma Ray Digital Inc

FJS International, LLC

Wooden Camera

Abel Cine

New Pro Video - New and Used Equipment

Visual Products

Rig Wheels Passport

Broadcast Solutions Inc