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  2. Depth of field - Wikipedia

    en.wikipedia.org/wiki/Depth_of_field

    The depth of field (DOF) is the ... Aperture settings are adjusted more frequently in still photography, where variations in depth of field are used to produce a ...

  3. Deep focus - Wikipedia

    en.wikipedia.org/wiki/Deep_focus

    Because depth of field is a characteristic of lens focal length (in addition to aperture and focus distance setting), it is easier to achieve a deep-focus look with a smaller imaging sensor or film gauge. For example, a 40mm lens will give a 30-degree horizontal angle of view in the Super35 format.

  4. Hyperfocal distance - Wikipedia

    en.wikipedia.org/wiki/Hyperfocal_distance

    For example, on the Minox LX focusing dial there is a red dot between 2 m and infinity; when the lens is set at the red dot, that is, focused at the hyperfocal distance, the depth of field stretches from 2 m to infinity. Some lenses have markings indicating the hyperfocal range for specific f-stops, also called a depth-of-field scale. [3]

  5. Depth of focus - Wikipedia

    en.wikipedia.org/wiki/Depth_of_focus

    The phrase depth of focus is sometimes erroneously used to refer to depth of field (DOF), which is the distance from the lens in acceptable focus, whereas the true meaning of depth of focus refers to the zone behind the lens wherein the film plane or sensor is placed to produce an in-focus image. Depth of field depends on the focus distance ...

  6. f-number - Wikipedia

    en.wikipedia.org/wiki/F-number

    As a result, smaller formats will have a deeper field than larger formats at the same f-number for the same distance of focus and same angle of view since a smaller format requires a shorter focal length (wider angle lens) to produce the same angle of view, and depth of field increases with shorter focal lengths. Therefore, reduced–depth-of ...

  7. Circle of confusion - Wikipedia

    en.wikipedia.org/wiki/Circle_of_confusion

    In photography, the circle of confusion is used to determine the depth of field, the part of an image that is acceptably sharp. A standard value of CoC is often associated with each image format , but the most appropriate value depends on visual acuity , viewing conditions, and the amount of enlargement.

  8. Focus stacking - Wikipedia

    en.wikipedia.org/wiki/Focus_stacking

    Focus stacking (for extended depth of field) in bright field light microscopy. This example is of a diatom microfossil in diatomaceous earth. Three source images at different focus distances (top left) are combined with masks (top right) to obtain the contributions of their respective images to the final focus stacked image (bottom).

  9. Aperture - Wikipedia

    en.wikipedia.org/wiki/Aperture

    Depth of field is a significant concern in macro photography, however, and there one sees smaller apertures. For example, the Canon MP-E 65mm can have effective aperture (due to magnification) as small as f /96. The pinhole optic for Lensbaby creative lenses has an aperture of just f /177. [13]