Bellows Extension Calculator
Posted: Wed Jan 09, 2013 5:31 pm
http://www.cookseytalbottgallery.com/ph ... dNumber=24
extension is bellows extension in mm
focalLength is focal length in mm
factor = (extension * extension)/(focalLength * focalLength)
stopsCompensation = log(factor)/log(2)
extension is bellows extension in mm
focalLength is focal length in mm
factor = (extension * extension)/(focalLength * focalLength)
stopsCompensation = log(factor)/log(2)