a = 2*arctan(d/2f)
The angle of view (a) is given by the above equation, where ‘d’ is the dimension of the negative-format diagonal and ‘f’ is the focal length. 'a' is the complete angle of coverage.
a = 2*arctan(d/2f)
The angle of view (a) is given by the above equation, where ‘d’ is the dimension of the negative-format diagonal and ‘f’ is the focal length. 'a' is the complete angle of coverage.
Regards
Ralph W. Lambrecht
www.darkroomagic.comrorrlambrec@ymail.com[/URL]
www.waybeyondmonochrome.com