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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