To Filter lens Or Not?
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Old 04-22-2012   #1
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Default To Filter lens Or Not?

I have a couple UV lens filters, that I keep on my lenses. I suppose that is not unusual, but it makes me wonder just how effectual they really are.

Can anyone in here illustrate a shot of the same object with, and without a UV filter to illustrate the difference?

I can do an experiment on my own, and probably will; but just thought that someone might have already done this type of experiment, and can illustrate the differences for me.

Thanks,
-Soupy1957

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Old 04-22-2012   #2
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Default Re: To Filter lens Or Not?

They really serve no purpose as the sensor has a uv filter. Some people use them to protect the outer element.

I am sure this thread will open the whole to filter or not to filter debate. There are two camps out there and they never seem to agree.
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Old 04-22-2012   #3
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Default Re: To Filter lens Or Not?

Quote:
Originally Posted by scootermcq View Post
They really serve no purpose as the sensor has a uv filter. Some people use them to protect the outer element.

I am sure this thread will open the whole to filter or not to filter debate. There are two camps out there and they never seem to agree.
That it not true there scooter. We have always agreed...........agreed to disagree that is.
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Old 04-22-2012   #4
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Default Re: To Filter lens Or Not?

I use one outdoors where I might get something like salt water or sand on the lens. I'm also careful to use the lens hood since the filter will increase the amount of lens flare. A filter, even the best, will also have a very small effect on image sharpness.

Indoors, I never use the filter.
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Old 04-22-2012   #5
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Old 04-22-2012   #6
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Default Re: To Filter lens Or Not?

I quit using UV filters for protection when they caused ghost images of bright lights in the picture area, even with a Leica filter on a Leica lens. This was many years ago, before coated filters became normal. At this late date I'm not going to try to find examples.
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Old 04-22-2012   #7
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Default Re: To Filter lens Or Not?

Do your own test with a picture of the moon. Just shoot with & without the filter a slightly off-center moon picture. It will show how much reflection you get off of your filter but has nothing to do with filtering UV light.
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Old 04-22-2012   #8
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Default Re: To Filter lens Or Not?

Also, they cause ugly reflections when shooting at night.
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Old 04-24-2012   #9
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Default Re: To Filter lens Or Not?

1. You can reproduce the effects of almost any filter in PP, apart from a Polariser.
2. Filters are made of thin glass in a thin metal/plastic holder, if you drop the camera/lens the filter is highly likely to break. The shards of broken filter are more likely to damage the lens than anything else.
3. It is amazing how much damage has to be done to the front element of a lens to seriously degrade the photographs - plenty of examples on the web.
4. The space between the filter and the lens is the perfect environment for fungal growth to begin - "man-made lens warming".
5. They can cause flare and other weird effects.
5. Most filters degrade the picture quality to some extent. (I proved this to myself using a reasonable quality Hoya UV filter). I just can't afford the filters that don't - IF they actually don't !
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Old 04-24-2012   #10
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Default Re: To Filter lens Or Not?

I always use a filter just to protect the lens. I would rather replace the filter than the lens.


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