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Old Jan 6, 2004, 11:44 AM   #1
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Can anyone tell me what a UV lens filter does? does it improve quality or reduce it? Other than protecting the lens, is there any other use? I'm using a UV filter on my Canon digital rebel!
Any help would be appreciated.

Thanks in advance!
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Old Jan 6, 2004, 2:26 PM   #2
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Default Re: lens filters

Quote:
Originally Posted by private
Can anyone tell me what a UV lens filter does? does it improve quality or reduce it? Other than protecting the lens, is there any other use? I'm using a UV filter on my Canon digital rebel!
Any help would be appreciated.

Thanks in advance!
On digital cameras we simply use them to protect our expensive lenses from damage. On a film camera they help overcome the excessive UV light found in sunlight.

-Steve
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Old Jan 6, 2004, 3:28 PM   #3
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Steve, there is something that I have been wondering about and I would like to know your opinion on it. I have played around with infrared photography a little on my a70 and in my search for information I have ran across a couple of sites that sugest that you can take uv pictures on some digitals using a uv pass filter in the same manner you would with ir. If the ccd on some cameras are sensitive to uv light, could uv light not possibly cause minor noise and if so, would a uv filter cut this noise, even if it is only by a small factor?
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Old Jan 8, 2004, 8:13 PM   #4
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Default Re: lens filters

Thanks for the info Steve,

But what about sharpness and quality? Are they affected? Does a filter affect light entering the cam in any way?

Thanks!
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