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Kodak Pola-screen: Like filters, the Pola-Screen has its greatest effect on a clear blue sky. The result can be judged visually through the Pola-Screen, but maximum effect can be assured by merely pointing the indicator -handle on the rim directly at the sun.
The Kodak Pola-Screen is also useful in photographing obliquely through glass or water to show detail beyond or below the reflecting surfaces; for subduing oblique reflections which hide surface details, in order to show texture or pattern; and for architectural work.
For a comparison of results obtained with various filters, see the following two pages.
In black-and-white picture making, control of sky tone by the Pola-Screen is often preferable to control by a filter. For example, the use of a red "A" Filter to produce a dark sky behind a flag seriously distorts the colors of the flag. The Pola-Screen, on the other hand, darkens the sky just as much but does not affect the flag rendering. In certain cases the A Filter and Pola-Screen can be used together in daylight exposures to produce a night effect.
Why color filters are important in black-and-white photography.How to select them.Effects obtained with varioustypes.Combination lens attachments The Pola-Screen |
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