Re:HIE and Red/Polarizing filters (was Maco IR films)

[Eckhard Stephan <eckhard.stephan@xxxxxxxx>]

JoePaduano@xxxxxxx wrote:
> 
> Why use a yellow filter with the red? The yellow can't filter out any more
> blue light than the red. 

Yep. 

> Also, a polarizing filter polarizes visible light,
> but very little IR. You are effectively lowering the EI of the film and
> making it more difficult than need be to use the film.

Yes, the additional polarizer effectively makes the film slower.
However, it may well help you to get a special look, especially on a
sunny day with some nice white clouds. 8-)) Since HIE has full
panchromatic sensitivity, a polarizer does make sense, even if it has
almost no effect on IR radiation. I used a combo of a #25 red and a
circular polarizer for some landscape shots last summer. The results
definitely looked different from those I got using only the red filter
(slightly higher contrast, darker skies, somehow similar to what I would
have expected with a #87 or the like). 

Eckhard

-- 
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*          Eckhard Stephan             * 
*          Freiburg (Germany)          *
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