On 14/11/2013 7:25 AM, CollinB wrote:
Collin, you can put the best filter in the world on an uncoated lens,
and you will get flare because of internal reflections. All a coated
element can do is keep reflections off of the element it is applied to
at bay. Once the light has moved to another piece of glass, it's a whole
new ball game.
Lens coatings are primarily for flare protection. Any color correcting
they do is secondary, though possibly by design.
Bill
Yes. You've probably shot more LF than me, and we both know what color
correction filters can do for b&w as well as enhancing color results, both
neg and reversal.
But. I'm thinking (though I might possible be wrong) that there might be an
optical improvement to using the lens coatings on the filters. (Didn't
Pentax even market SMC filters at one time?)
We improve contrast with polarizers and UV/1A filters. Why not one more
contrast improvement?
We are talking about the same thing, except I'm drunk and you didn't
catch on..
The best imaging comes when all surfaces are coated, even the cemented
one, if I am not mistaken.
bill
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