Hello there,
If I'm not mistaken, there is a mistake on this page, specifically some numbers are reversed.
http://www.largeformatphotography.in...ws-factor.html
Near the top of that page UNDER Roy Harrington there is a table
Lens: Extension: Compensation:
He compensates the Aperture values the wrong way, closing them further when in fact they should be opened, correct?
Just thought I'd point that out, trying to be helpful
Best
Joe
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