Re: Circular Polarizers, A Filter You Need

In article <CLOdnZxcQc8kdCTbnZ2dnUVZ_qGknZ2d@[EMAIL PROTECTED]
>,
 "Matt Clara" <hey.wood.y@[EMAIL PROTECTED]
> wrote:

> The reason for this is that both of these systems use semi-silvered
mirrors 
> to siphon off some of the light coming though the lens. If that light is

> linearly polarized it renders either the metering or the autofocus 
> ineffective. This means that you're going to have to buy circular
polarizers 
> unless you're shooting with a pre-1970's camera, or a view camera."

There is another reason that might effect some systems. And that is any 
camera that has a polarized system in the viewfinder for display 
readouts. If the camera has that type of display then as a linear 
polarizer is rotated some display information may disappear and reappear 
or be harder to read at some points of rotation then at others.

-- 
To reply no_ HPMarketing Corp.