Well,
Multi/single-coatings are used to reduce unwanted reflections
at any air/glass boundary.
You will still have the disadvantages of SC lens elements if you
put a MC filter on the front. On top of that, you have now introduced
two more air/glass boundaries between film and subject; with their
corresponding unwanted reflections.
You have made things *worse* by putting the glass there
(no matter how good the filter coatings are).
If you want best performance out of your lens (SC or MC or no coatings),
DON'T use a filter (unless you want a specific effect), and use a matched
lens hood or shade the front element.
duncan
Alexander <mediadyne@xxxxxx> on 19/01/99 08:14:41
Please respond to olympus@xxxxxxxxxxxxxxx
To: olympus@xxxxxxxxxxxxxxx
cc: (bcc: Duncan McRae/QSA/AU)
Subject: [OM] here is an interesting question...
This same question appeared (posted by me) on the old Olympus list about1
and a half
years ago. No one finaly came to a conclusion, so lets give it another try.
What happens, when you put a multicoated filter (i.e. B+W) on a single
coated lens?
Are the results multi coated or single coated?
Let me tell you this post went on for a long time back then on the oly
list.
I think only Mr. Carrington cam up with a somewhat acceptable answer.
Dont forget that the light will first hit the filter before entering the
lens optics...
Well???
--
Regards,
Alexander
http://www.mediadyne.gr/photos
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