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focal length

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
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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Tokyo, Japan, Nov 22, 2006 - (JCN) - Fujinon Corporation, a subsidiary of Fuji Film Corporation announced its release of DIGI POWER 88, HD zoom lens with a focal length of 8.
Fujinon to Release High-Power HD Zoom Lens of 88 Fold by JCNN News Summaries
The expansion alters the lens' focal length and diminishes transmitted light, Lyon says.
A dim view of biologic and chemical agents by Weiss, Peter / Science News
angle lens equivalent to a 24mm focal length or wider is absolutely essential for controlling perspective.
Shaping perspective with a wide-angle lens by Douglis, Philip N. / Communication World
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