Graflex and Graphic Focal Plane Shutter Photography Form No. 8056, Folmer Graflex Corporation (Rochester, NY), copyright 1931. Third Revision 1936, ~5½"x8½", 24pp

This black and white printing is similar to the earlier undated manuals of the same name c. 1910 and c. 1925.  This one, however, is dated on the inside back cover: "No. 8056  Copyrighted, 1931, Folmer Graflex Corporation  Printed in U.S.A. First Revision 1933 - Second Revision 1935 - Third Revision - 1936".  It contains an excellent description of depth of field and size changes vs. lens focal length and f-stop.
















 

 

 

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