I've always thought that, strictly speaking, any hyperfocal distance "range" had it's 'far end' anchored at infinity, by definition, regardless of what the rest of the line segment looks like, where the nearest distance point lies, etc.
If that's not true, I need to know now, so I don't further mess up my fragile brain memory cells!
Get me that answer, and I'll work out the rest for myself.
Thanks!
keith whaley
Jens Bladt wrote:
Hyper focal distance nothing to do with zone focusing.
Oh, it does. The HFD is the basic math behind defining the zones in order to ensure overlapping DOF "between" them. Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt
-----Oprindelig meddelelse----- Fra: William Robb [mailto:[EMAIL PROTECTED] Sendt: 10. april 2004 14:50 Til: [EMAIL PROTECTED] Emne: Re: Zone Focus - what is it?
----- Original Message ----- From: "Boris Liberman" Subject: Re: Zone Focus - what is it?
Hi!
Thanks!
Jens, I think I knew about the hyper focal distance and Pentax
manual
lens markings... I just did not know it was called also the zone focus. Thanks for the formulas. I need to memorize them may be...
Hyper focal distance nothing to do with zone focusing.
Well, I've got now "The Negative" and I am going to read it very thoroughly...
That will teach you about film exposure and development, not about how to focus a camera.
I suppose that zone focusing requires certain optical qualities of
the
lens to be present...
No. A lens is a lens is a lens.
William Robb
