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Question about Speedboosters
  
 
joekraft
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p.1 #1 · p.1 #1 · Question about Speedboosters


When Metabones (or equiv) says their speedbooster modifies the original lens length by Xx (.71 in the Metabones case) - is that before or after the crop factor conversion? E.g a 100mm EF lens on an APS-C camera like NEX-6 -

Is the effective length going to be 71 (100 x .71) or is it 107 (100 x .71 x 1.5)?

Thanks



Apr 15, 2014 at 04:19 PM
ken.vs.ryu
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p.1 #2 · p.1 #2 · Question about Speedboosters


The latter.


Apr 17, 2014 at 04:25 AM
ken.vs.ryu
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p.1 #3 · p.1 #3 · Question about Speedboosters


Doh it got archived. http://www.fredmiranda.com/forum/topic/1181879


Apr 17, 2014 at 04:29 AM
joekraft
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p.1 #4 · p.1 #4 · Question about Speedboosters


Sweet, thanks. I am going to have to try the EF100/2 then, I'd like to see what it can do.


Apr 17, 2014 at 03:08 PM





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