| Photography Forum: Photography Help Forum: |
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Q. Polarizers on digital
Asked by Steve Castle
(K=104) on 12/4/2004
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Hi all,
I have a Fuji S7000 which is giving muddy results when used with a polarizer (Hoya). The filter works perfectly on film (mainly Velvia 50). I can make corrections in photoshop to get that polarized sky look back, but I'd prefer not to.
Has anyone ever experienced this? For an example of what I mean, go to www.castleimages.com.au/fineart/sign.htm. both images are straight camera files, the one on the right is the polarised image.
Steve
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Charles Morris
(K=5969) - Comment Date 12/4/2004
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digital cameras seem to prefer circular polarizing filters vs linear polarizers. it looks to me like the issue here is one of color balance. most polarizers render a lightly cooler color temerature and if you are using a wide angle lens the problem is compounded a bit because the polarizer will have a band of ideal function and then it tapers off on both sides of that band. so you have effectively uneven color temperature across the frame. if your camera has a manual white balance, take advantage of it. if your camera is on auto white balance, then polarizers make the camera want to jump to a warmer white balance to offset the cool color cast with the polarizer, it makes the skies and cooler colors look dingy and yellowish. experiment with your white balance settings, i think that is where you will find your problem.
2cents@large
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Steve Castle
(K=104) - Comment Date 12/5/2004
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Thanks Charles,
I have come to much the same conclusion. Unfortunately we have not had a clear day here for a week so I have been unbale to test things further.
Steve
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