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Re: [OM] Macro Questions

Subject: Re: [OM] Macro Questions
From: Garth Wood <garth@xxxxxxxxxxxxxxx>
Date: Thu, 24 May 2001 13:23:56 -0600
At 12:31 PM 5/24/01 +0000, John A. Lind wrote:

[snip]

If posting images were not considered poor form on a mail list, I would attach some graphs of what happens to the "Circle of Confusion" as distance increases behind the critical focus points having the same magnification for different focal lengths. If the background is very close to the rear of the DOF, changing focal length won't make much difference. If the background is relatively far from the rear of the DOF it can make a difference. The farther it's behind the rear of the DOF, the more difference it makes.

John:

You could always post such images to a Web page, and then include a link in your e-mail. Those who are interested can follow the link -- the rest can ignore it at their leisure. ;-)

Garth


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