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Focal length definition of Focal length in the Free Online ...
Focal length. A measure of the collecting or diverging power of a lens or an optical system. Focal length, usually designated f ′ in formulas, is measured by the distance of the ...
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focal length definition | Dictionary.com
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focal length definition - Dictionary - MSN Encarta
fo·cal length: noun : Definition: distance from lens to focal point: the distance from the center of a lens or the surface of a mirror to the point at which light passing through ...
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focal length - definition of focal length by the Free Online ...
focal length. n. Abbr. f. The distance from the surface of a lens or mirror to its focal point. Also called focal distance, focus. focal length. Noun
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Focal Length: Optical: Glossary: Learn: Digital Photography Review
Focal Length Optical Glossary Learn Digital Camera Digital Photography ... The focal length of a lens is defined as the distance in mm from the optical center of the lens to the ...
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focal length - Definition of focal length at Your Dictionary
Preposition: of. mm: A convex lens has a focal length of 150 mm. Converse of object. have: A convex lens has a focal length of 150 mm. extend: The larger blocking filter allows you ...
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focal length - Wiktionary
Definition from Wiktionary, a free dictionary
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focal length - definition of focal length in the Medical dictionary ...
focal length. n. The distance from the surface of a lens or mirror to its focal point. Also called focal distance, focus.
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Encyclopedia of Laser Physics and Technology - focal length, dioptric ...
For an optical system, which may consist of multiple lenses and other optical elements, the above definition of the focal length cannot be used, as it is not clear a priori for an ...
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focal length - Definition from the Merriam-Webster Online Dictionary
Definition of focal length from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.
www.merriam-webster.com
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