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equivalent focal length

noun

  1. optics the ratio of the size of an image of a small distant object near the optical axis to the angular distance of the object in radians
鈥淐ollins English Dictionary 鈥 Complete & Unabridged鈥 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Example Sentences

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The telephoto camera remains exclusive to the 13 Pro phones, and Apple has increased its equivalent focal length to 77mm, or three times longer than the primary camera.

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Only one rear camera, but it鈥檚 a big one The f/1.9 鈥淪ummicron鈥 lens is also much wider than on other phones鈥 primary cameras, with an equivalent focal length of 19mm 鈥 that鈥檚 in ultrawide territory.

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It starts with a gigantic 1/1.7-inch Exmor RS 12-megapixel sensor set behind a Zeiss lens at a 24mm equivalent focal length.

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Combined, Fujifilm says this gives the SX800 a total equivalent focal length of 1000mm, which is enough to focus on a car鈥檚 license plate from 1km or roughly 0.6 miles away.

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The camera鈥檚 32mm equivalent focal length is wide enough that it鈥檚 hard to miss your target, even if you鈥檙e shooting blind, but isn鈥檛 so wide that it鈥檚 hard to make out what you were targeting.

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equivalent circuitequivalent weight