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  2. Depth of field - Wikipedia

    en.wikipedia.org/wiki/Depth_of_field

    Bokeh simulator and depth of field calculator—Interactive depth of field calculator with background blur simulation feature Lens Comparison: Nikon 50mm f/1.4D vs. 50mm f/1.4G —Demonstration of varying apertures on depth of field

  3. Hyperfocal distance - Wikipedia

    en.wikipedia.org/wiki/Hyperfocal_distance

    The hyperfocal distance has a property called "consecutive depths of field", where a lens focused at an object whose distance from the lens is at the hyperfocal distance H will hold a depth of field from H/2 to infinity, if the lens is focused to H/2, the depth of field will be from H/3 to H; if the lens is then focused to H/3, the depth of ...

  4. Zeiss formula - Wikipedia

    en.wikipedia.org/wiki/Zeiss_formula

    In photographic optics, the Zeiss formula is a supposed formula for computing a circle of confusion (CoC) criterion for depth of field (DoF) calculations. The formula is c = d / 1730 {\displaystyle c=d/1730} , where d {\displaystyle d} is the diagonal measure of a camera format, film, sensor, or print, and c {\displaystyle c} the maximum ...

  5. 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 ...

  6. Depth of focus - Wikipedia

    en.wikipedia.org/wiki/Depth_of_focus

    Depth of field depends on the focus distance, while depth of focus does not. Depth of focus can have two slightly different meanings. The first is the distance over which the image plane can be displaced while a single object plane remains in acceptably sharp focus; [1][2] [clarify] the second is the image-side conjugate of depth of field.

  7. Circle of confusion - Wikipedia

    en.wikipedia.org/wiki/Circle_of_confusion

    Such a blur spot has the same shape as the lens aperture, but for simplicity, is usually treated as if it were circular. In practice, objects at considerably different distances from the camera can still appear sharp; [1] the range of object distances over which objects appear sharp is the depth of field (DoF). The common criterion for ...

  8. 35 mm equivalent focal length - Wikipedia

    en.wikipedia.org/wiki/35_mm_equivalent_focal_length

    Equivalent depth of field can be calculated the same way using the crop factor. [3] For example, a 50mm f/2 lens on a 2× crop factor Micro Four Thirds camera would be equivalent to a 100 mm (= 2×50 mm) f/4 (= f/(2×2)) lens on a full-frame digital SLR in terms of field of view, depth of field, total light gathered, [4] and diffraction effects ...

  9. Image sensor format - Wikipedia

    en.wikipedia.org/wiki/Image_sensor_format

    Three possible depth-of-field comparisons between formats are discussed, applying the formulae derived in the article on depth of field.The depths of field of the three cameras may be the same, or different in either order, depending on what is held constant in the comparison.