Why aperture affects the Depth of Field

Most photographers know that aperture affects the depth of field. (Small aperture = sharp image; large aperture = blurry image.) This video gives a simple, non-mathmatic, explanation. https://www.facebook.com/StearmanPress/ For more info regarding our large format film processing tanks, visit: https://shop.stearmanpress.com Follow up video: "The logic behind irrational f-stops" https://youtu.be/3DbLylR04fw Another video on DOF and sensor size: https://youtu.be/ZHa8LDDGGS8