What is the focal length ratio, relative to 35mm, of each format?

Last Updated at Apr 29 by admin

Given 35mm 36mm x 24mm = 1.0X
RED 4K 22.2mm x 12.6mm = 1.62X
RED 3K 16.65mm x 9.36mm = 2.16X
RED 2K 11.1mm x 6.24mm = 3.24X