And you can find some more information at eg.
http://www.outsight.com/index.html (select "Focus pocus" in the left frame).
http://www.dof.pcraft.com/dof.cgi is another good link.
-----Original Message-----
From: Tom Rittenhouse [mailto:[EMAIL PROTECTED]]
Sent: den 18 juli 2001 08:47
To: [EMAIL PROTECTED]
Subject: Re: DOF Scale
You are right. When the far DOF point is at infinity the lens is
focused at what is called the hyperfocal point. At the
hyperfocal point everything is in focus from about 1/2 the
hyperfocal distance to infinity. That DOF scale is the landscape
photographers best friend.
> Paul Jones wrote:
> I've been playing with a M50/1.4 on an MX and before now I've
> never taken much not of the DOF scale on the lense. Now by
> looking at it implies that if I focus to about 12 feet and set
> the aperture to F22, then everything from 6 feet to infinity
> will be infocus. So now getting to my point, if I was shooting
> a landscape and I wanted lots of the foreground in focus then
> I would focus to 12 feet instead of infinity. Hope this makes
> sense?
> When I shoot most landscapes I focus the camera to infinity,
> but by focusing to 12 feet I would actually have more in
> focus. What would I be sacrificing by focusing to 12 feet at
> F22 in stead of infinity at F22?
--
Tom "Graywolf" Rittenhouse
Graywolf Photo, Charlotte, NC, USA
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