I use a Chinon 500mm f8 mirror lens, and yes ring blur are one of the
characteristics I have noted. Here is an example of a Long Eared Owl I took
on the Richmond Dykes last January. It clearly shows the effect.
http://communities.msn.ca/BirdMigrationRichmondBC/
James
----- Original Message -----
From: "Ayash Kanto Mukherjee" <[EMAIL PROTECTED]>
To: "Pentax List" <[EMAIL PROTECTED]>
Sent: Sunday, May 27, 2001 12:07 PM
Subject: Mirror Telephoto->Photograph
>
> Hi all!
>
> Can you refer me some site where I can find photographs taken with 600 mm
> f/8 lens of any brand. I learned that this class of lens produces ring
> blur. I don't know what it means. Can any please explain?
>
> With best regards,
> Ayash Kanto.
>
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