How can I tell if I'm looking at the proper center filter?

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Stephan Goldstein - 27 Jun 2004 01:09 GMT

I'm thinking about a center filter for my 121mm Super-Angulon
for 5x7 use. How can I tell which is which short of making some
negs? Is there any way to tell by inspection? I couldn't find
any useful guidance on the Schneider web site.

BTW, what might be a reasonable used price?

TIA
steve

Please reply to group, my email address is completely bogus!

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P. MacGahan - 27 Jun 2004 19:53 GMT

> I'm thinking about a center filter for my 121mm Super-Angulon
> for 5x7 use. How can I tell which is which short of making some
> negs? Is there any way to tell by inspection? I couldn't find
> any useful guidance on the Schneider web site.
>
> BTW, what might be a reasonable used price?

In my experience center filters are expensive filters.
On 5x7 a 121 is not extremely wide (similar to a 90mm on 4x5).
Consequently, you would only need one if you are going to use the
edge of the coverage. I guess lenses vary, but the 121 SA I had, was
not very good near the edge of coverage and a center filter won't help
that problem. Unless you have considered these points, you may want to
make some tests before getting a center filter.

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Heinz Grau - 28 Jun 2004 11:00 GMT

Some information is here:
http://www.schneiderkreuznach.com/pdf/foto/CENTERFILTER.pdf
Hope this helps
Heinz

> > I'm thinking about a center filter for my 121mm Super-Angulon
> > for 5x7 use. How can I tell which is which short of making some
[quoted text clipped - 10 lines]
> that problem. Unless you have considered these points, you may want to
> make some tests before getting a center filter.

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Stephan Goldstein - 28 Jun 2004 11:53 GMT

>Some information is here:
>http://www.schneiderkreuznach.com/pdf/foto/CENTERFILTER.pdf
>Hope this helps
>Heinz

Thank you! I had not found this is the Schneider site, but it's exactly
what I was looking for.

Steve

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