web.456e648da8eb71434ac3566b0@news.povray.org...
> Dear Alain,
> Thanks a lot for your information. If this camera doesn't have real focal
> length, Is there any realtionship made for focal blur with focal length or
> with some other parameters like aperture, sampling and etc.
> Pls give me some idea about it.

You can try this:
http://www.wozzeck.net/images/DoF.html

G.

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