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Depth of focus information


Depth of focus is a lens optics concept that measures the tolerance of placement of the image plane (the film plane in a camera) in relation to the lens. In a camera, depth of focus indicates the tolerance of the film's displacement within the camera and is therefore sometimes referred to as "lens-to-film tolerance".

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Depth of focus

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Depth of focus is a lens optics concept that measures the tolerance of placement of the image plane (the film plane in a camera) in relation to the lens...

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Focus stacking

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at different focus distances to give a resulting image with a greater depth of field (DOF) than any of the individual source images. Focus stacking can...

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Depth of field

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The depth of field (DOF) is the distance between the nearest and the furthest objects that are in acceptably sharp focus in an image captured with a camera...

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Hyperfocal distance

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"acceptable" focus. As the hyperfocal distance is the focus distance giving the maximum depth of field, it is the most desirable distance to set the focus of a fixed-focus...

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Intraocular lens

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accommodation. Multifocal IOLs can also be Trifocal IOLs or extended depth of focus (EDOF) lenses. As of 2021, nearly 28 million cataract procedures take place annually...

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2D to 3D conversion

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amount of blur of the considered object, whereas "depth from focus" (DFF) approaches tend to compare the sharpness of an object over a range of images taken...

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Bokeh

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regions of an image which are outside the depth of field. The opposite of bokeh—an image in which multiple distances are visible and all are in focus—is deep...

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Extreme ultraviolet lithography

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is the depth of focus. For a depth of focus of 100 nm, a small local deviation from flatness of 2.5 mrad (0.14°) can lead to a pattern shift of 1 nm. Simulations...

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Depth perception

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the world in three dimensions. Depth perception happens primarily due to stereopsis and accommodation of the eye. Depth sensation is the corresponding...

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Digital holography

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capability of Digital Holography in amplitude and phase it is possible to extend the depth of focus in microscopy. The digital analysis of a set of holograms...

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Shallow focus

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Shallow focus is a photographic and cinematographic technique incorporating a small depth of field. In shallow focus, one plane of the scene is in focus while...

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Light field camera

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the depth of field (depth of focus) of a 2 dimensional representation of a Lytro image to be adjusted after a picture has been taken. Instead of setting...

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Visual Focus Depth Art

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Visual focus depth art s a form of mixed media collage that places an emphasis on the use of three-dimensional application to individual creations of single...

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Camera

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lower f-stops narrows the range of focus so the background is blurry while the foreground is in focus. This depth of field increases as the aperture closes...

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Tilted plane focus

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spatial depth. Selective focus in photography is usually associated with depth of field. A pinhole camera generates an image of infinite relative focus, from...

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Bracketing

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lens. Focus bracketing is useful in situations with limited depth of field, such as macro photography, where one may want to make a series of exposures...

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Cinematography

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"acceptable focus" (only one exact plane of the image is in precise focus) on the film or video target. Depth of field (not to be confused with depth of focus) is...

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Chromatic aberration

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which increases depth of field so that though the different wavelengths focus at different distances, they are still in acceptable focus. Transverse CA...

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Focal length

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more sharply, bringing them to a focus in a shorter distance or diverging them more quickly. For the special case of a thin lens in air, a positive focal...

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Circle of confusion

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on this account have less depth of focus" [his italic emphasis]. Dallmeyer (1892, p. 24), in an expanded re-publication of his father John Henry Dallmeyer's...

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Photolithography

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another process-related coefficient. The depth of focus restricts the thickness of the photoresist and the depth of the topography on the wafer. Chemical...

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Soaps In Depth

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other soap opera-focused magazines (like Soap Opera Digest) that offered general coverage of all of the daytime serials, Soaps In Depth was initially structured...

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Optical proximity correction

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or spread of illumination angles, which can affect the depth of focus. While the use of OPC can offer significant benefits to depth of focus, aberrations...

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Gaussian beam

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confocal parameter or depth of focus of the beam. Although the tails of a Gaussian function never actually reach zero, for the purposes of the following discussion...

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Accommodation reflex

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the pupil constricts to increase the depth of focus of the eye by blocking the light scattered by the periphery of the cornea. The lens then increases...

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Deep focus

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Deep focus is a photographic and cinematographic technique using a large depth of field. Depth of field is the front-to-back range of focus in an image...

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Squid

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that of a fish eye, with a globular lens that has a depth of focus from 3 cm (1.2 in) to infinity. The image is focused by changing the position of the...

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