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[OM] Re: Checking Bokeh

Subject: [OM] Re: Checking Bokeh
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>
Date: Fri, 24 Jun 2005 13:44:39 -0400
Jeff Keller wrote:

> I was thinking to use the same objects placing them at the appropriate
> distance to give the same image size for each lens ... 

Makes sense to me and has the advantage of maintaining the same DOF.

For example, using a 50mm lens at 18" would require using a 100mm lens 
at 36" for the same image size.  If both lenses are set at f/8 the DOF 
will be the same on both lenses at approximately 1-1/2 inches.

Chuck Norcutt


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