Depth of field table and wheel
Exposure Measurement
Depth of field table and wheel
after 1914
Paper
Overall: 2 3/8 × 4 5/16 in. (6 × 11 cm)
Gift of Eastman Kodak Company, ex-collection Gabriel Cromer
DescriptionDepth-of-field table typed on folded paper with calculation wheel inside.
Inscriptions Printed in blue ink, envelope recto, T: APPAREIL MAKINA
