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- Critical_focus abstract "In a photograph, the area of critical focus is the portion of the picture that is optically in focus. This does not relate to depth of field which describes apparent sharpness. Reducing the size of the aperture will increase the depth of field but the plane of critical focus will not change. Depth of field extends away from the plane of critical sharpness.The image is only critically in focus within a plane. The formula that describes the relationship between plane of sharpness, lens and film is,where is the film to lens distance, is the distance from the lens to the plane of critical focus, and is the focal length of the lens.'Critical Focus' is also the title of a regular column by Brian J. Ford in the American magazine The Microscope.".
- Critical_focus wikiPageExternalLink w-CF-01.htm.
- Critical_focus wikiPageID "1114864".
- Critical_focus wikiPageRevisionID "469409166".
- Critical_focus hasPhotoCollection Critical_focus.
- Critical_focus subject Category:Science_of_photography.
- Critical_focus comment "In a photograph, the area of critical focus is the portion of the picture that is optically in focus. This does not relate to depth of field which describes apparent sharpness. Reducing the size of the aperture will increase the depth of field but the plane of critical focus will not change. Depth of field extends away from the plane of critical sharpness.The image is only critically in focus within a plane.".
- Critical_focus label "Critical focus".
- Critical_focus sameAs m.0478mc.
- Critical_focus sameAs Q5186716.
- Critical_focus sameAs Q5186716.
- Critical_focus wasDerivedFrom Critical_focus?oldid=469409166.
- Critical_focus isPrimaryTopicOf Critical_focus.