Field of view - Wikipedia, the free encyclopedia
The field of view (also field of vision ) is the angular extent of the observable world that is seen at any given moment. Different animals have different fields of view, depending on the placemen...
en.wikipedia.org/wiki/Field_of_view
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Field of View - Rectilinear and Fishye Lenses ... With the advent of digital cameras having non-standard sensor sizes there seems to be quite a lot of confusion concerning focal length, field of view and digital multipliers and how they relate. This article is intended to try to clear up some ... Calculating Field of View...
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www.bobatkins.com/photography/technical/field_of_view.h...
www.bobatkins.com/photography/technical/field_of_view.html
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First calculate the (horizontal) angle or field of view: ... A 100 mm lens has a 20 degree angle of view, 200 mm is 10, 400mm is 5 degrees, and a 25mm lens is 80%. (For 50mm and larger lenses the actual field of view is about 3% higher - but 3% seems pretty good for a rule of thumb!).
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mappinghacks.com/2008/06/03/what-is-2-centimeter-imager...
mappinghacks.com/2008/06/03/what-is-2-centimeter-imagery-open-aerial-map-and-calculating-field-of-view/
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These facts can be used to calculate the field of view (angle of view) through any combination of eyepiece and telescope. It is known as the drift method.
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www.umanitoba.ca/faculties/science/astronomy/cbrown/162...
www.umanitoba.ca/faculties/science/astronomy/cbrown/16207/fov.htm
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Subject: SV: ATM calculating field of view ... But here's one way of measuring the apparent field of view: Put the eyepiece on a table standing near a light-colored wall, eye side pointing to the wall. Shine a flashlight (reasonably collimated, with beam wider than the field stop) towards the field stop.
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astro.umsystem.edu/atm/ARCHIVES/FEB99/msg00235.html
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CALCULATE FIELD OF VIEW & LENS SIZE ... ; Calculators - Field of View & Required Lens Size; ... To calculate your field of view and recommended lens size please fill in the fields below and click the appropriate button.
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www.123securityproducts.com/calculator.html
www.123securityproducts.com/calculator.html
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It can't be used to calculate the field-of-view of a true panoramic camera with rotating lens. Note 2: The sizes for 4.5x6 and 6x7 are the ones used by Pentax. Other brands may have slightly different sizes. Note 3: The sizes for large format are the nominal sizes.
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www.mat.uc.pt/~rps/photos/angles.html
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The angle of view of the lens for the given combination is drawn on the adjacent graph, and the angle of view, field of view and 35mm equivalent lens are shown below it.
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www.sweeting.org/mark/lenses/
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"Focal Length Multiplier" is a not-exactly-correct-but-helpful term that many like to use to describe the Field of View Crop Factor. Although the physical focal length of a lens is not actually changed on a FOVCF camera, the subject framing certainly is.
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www.the-digital-picture.com/Canon-Lenses/Field-of-View-...
www.the-digital-picture.com/Canon-Lenses/Field-of-View-Crop-Factor.aspx
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