On 18 Dec 2000, at 8:56, John Hudson wrote:
I suspect that any
degradation caused by a high quality filter is minuscule. Poor quality
filters are probably another story.
I've never been able to afford "high quality" filters. The el-cheapo ones
DO degrade the image slightly. I noticed this by removing a filter,
looking through the viewfinder, and then holding the filter up to the lens.
I could see a noticable difference. Then, I took some test shots...
same scene, one photo with a filter and another photo without. The
shot with the filter on was slightly fuzzier than the filterless one.
So, since then (about 4 months ago), I've been shooting without a filter.
My results appear to be slightly sharper than before. Now, all I hafta do
is work on my composition and exposure skills! :-)))
Regards,
Chris
I would think that a visible difference looking through the
viewfinder would be due as much to the fact that the filter is not
perfectly perpendicular to the axis of the lens when handheld. The
test shots make the point though.
I used to do the UV filter thing on all my lenses, but I gravitated
to something similar to Doris Fang's school of using the lens shade
for protection of an unfiltered or uncapped lens. You certainly need
a shade if you have a filter on the front to avoid flare and having
both is like wearing a belt_and_suspenders. If you use a hat instead
of a shade, then maybe a filter is a good idea. Or if you have an
actual photographic need for a filter, that is something else.
I wonder sometimes whether filter quality should be the obsession it
is sometimes. Good old Ansel used Kodak gelatin filters without
degrading his pictures and even said that "B glass" laminated to
gelatin was fine for most photographic work excepting maybe extremely
high resolution map work. I think most filters sold now are pretty
high quality if not damaged in some way(excepting those little square
French plastic ones).
Winsor
--
Winsor Crosby
Long Beach, California, USA
mailto:wincros@xxxxxxxxxxx
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