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Forums Lobby MASTER YOUR VISION - BY SPECIALTY Micro, Macro & Close-up (Public) topic #69
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Subject: "RE: Magnification ratio" Previous topic | Next topic
TD Basic MemberWed 20-Jun-01 06:32 PM
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#4. "RE: Magnification ratio"
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Everett, US
          

Thanks, Scott. I had forgotten that the thumb rule applies at infinity focus. That would explain why the 55mm micro only needs 27.5mm of additional extension to go 1:1. When the lens is set at its closest focus (a reproduction ratio of 1:2) the extension has taken place internal to the lens.

  

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A general, generic topicMagnification ratio [View all] , org , Wed 20-Jun-01 09:46 AM
 
Subject Author Message Date ID
Reply message RE: Magnification ratio
TD
20th Jun 2001
1
Reply message RE: Magnification ratio
jnscbl
20th Jun 2001
2
Reply message RE: Magnification ratio
Boogaloo
20th Jun 2001
3
Reply message RE: Magnification ratio
TD
20th Jun 2001
4

Forums Lobby MASTER YOUR VISION - BY SPECIALTY Micro, Macro & Close-up (Public) topic #69 Previous topic | Next topic


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