There are 3 issues in your questions.
Skylight 1B changes the color balance of pictures. It is slightly
pinkish to help skys look bluer. UV is supposed to be color neutral
If the filter is optically ok and multi-coated, the potential for effect
on the image from reflections, etc. is very low.
If the filter is defective, it can really cause image degradation. The
problem is that the naked eye can't tell if it's ok. See the 50/1.4
comparison test with and without filter on Gary's lens tests
<http://members.aol.com/olympusom/lenstests/default.htm> .
A few weeks ago, a listee griped endlessly about his new lens (24/2.8
?). All kinds of possible causes and solutions were proposed. One was my
suggestion that he remove any filter that came with the lens and try it
again. Problem solved. So, if you want to use protective filters and
don't have access to a vertical auto collimeter, take test shots wide
open (where the effect is greatest) with and without the filter before
using it for any important pictures.
Moose
Ralph Nitschke wrote:
One question, neither of the lenses had a filter
mounted and I was wondering what the thoughts are on
using either an Skylight 1b or uv filter. I have one
parked on all my other lenses for a bit of protection.
Is this recommended practice, and does it affect the
images at all?
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