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| 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)?