Mees, C. E. Kenneth (Charles Edward Kenneth), 1882-1960, Eastman Kodak Company · Rochester, N.Y. : Eastman Kodak Company · leaf 31
eful: Vest Pocket Kodak .... 9 feet No. 0 Brownie 9 No. 2 Brownie 13^ " No. 2A, 2C and No. 3 Brownie . 15 If we are using a No. 0 Brownie, for instance, as long as everything is farther off than nine (9) feet we can rely on getting a picture with everything focused sharply. With the focusing Kodaks… … of focus. "This depth Depth of Focus with Full Aperture. locus depends on the focal length of the lens and on the size of stop used in the lens; the greater the focal length the less the depth of focus, and the bigger the stop the less the depth of focus. Thus in Fig. 28, we have a lens focusing…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
