Macro Lens Question - Slightly technical?

  • Thread starter Thread starter Dr. Sam
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Dr. Sam

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If a macro lens goes to a 1:1 magnification and the closest focus on that lens is 8.8 inches, would you have to be at 8.8 inches to obtain the 1:1 magnification? I am measuring the distance from the subject to the film plane or focal plane indicator.

I believe this to be true and my measurements seem to bear this out, but I'm looking for an educated photographer to confirm my amateur knowledge.
 
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