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Re: [OM] Extension rings and focus - newbie Q

Subject: Re: [OM] Extension rings and focus - newbie Q
From: Jan Steinman <Jan@xxxxxxxxxxxxxx>
Date: Thu, 14 Sep 2000 10:56:07 -0700
Using the extension tubes with a normal (non-macro) lens, should I
set focus to near or infinity for best results?

Unless your lens has a "floating element group" (the fast wides), it really doesn't matter. For a floating element lens, set it to minimum focus for best results.

What affect will this
have on actual depth of field?

None. DOF is strictly a function of aperture and distance.

--
: Jan Steinman <mailto:Jan@xxxxxxxxxxxxxx>
: Bytesmiths <http://www.bytesmiths.com>

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