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Old Jul 25, 2010, 7:11 PM   #21
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You can tell sometime in very bright sunshine. Also you sometime get a yellowish tint in part of the photo.
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Old Jul 25, 2010, 7:56 PM   #22
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Any filter, especially cheap ones, can cause problems when shooting at night or where there's strong lighting in the frame. Ira posted a picture somewhere that shows the flare you can get from filters very effectively. I discovered light flare shooting some city lights one night. So I don't use them very often. Now if I were shooting offroad racing out in the desert or in a sandstorm, I definitely would have some type of filter on my lens.
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Old Jul 27, 2010, 11:46 AM   #23
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I have used a UV filter in my K-x and I took it out, because you can see the degradation on the picture.
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Old Aug 1, 2010, 5:00 AM   #24
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Personally, I always use a UV filter (mainly for protection, but it's possible there is benefit in reducing UV transmission).

I don't believe any filter will be totally immune from flare in extreme situations, but some come mighty close (and don't necessarily cost the earth).

There's a very good website that deals with UV filter testing:

http://www.lenstip.com/113.1-article...ters_test.html

I'd strongly recommend you have a look here!
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Old Aug 1, 2010, 5:04 AM   #25
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I would always use a filter unless i could see anything bad by using one. I would hate for the lens to get scratched etc etc.
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Old Aug 1, 2010, 5:09 AM   #26
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filter degrade, even the very expensive and good ones. And UV filters do absolutely nothing but protect. UV light is not an issue with dslr it was with film back in the days. That was why UV filters were useful in the past. If you are going to use a filter, a Haze1 filter would be a better option, it warms the shot and still give you the protection of a piece of glass in front of the lens. So don't waste you money on a useless filter that can degrade and tint your shot. If you have to get something, get on that do something for you and a good one at that.
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Old Aug 1, 2010, 5:23 AM   #27
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So, no UV filter you say. My mates always use them on their DSLR's.
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Old Aug 1, 2010, 5:24 AM   #28
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Haze 1 if you feel better with having a filter to protect the lens.
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Old Aug 2, 2010, 7:16 AM   #29
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I used to use a filter for lens protection all the time, until I tried a comparison and found that there was a noticeable improvement in clarity when filter was removed. Now I only use one when hiking off-trail - branches more likely to smack inside the hood and hit the lens...
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