equivalent focal length

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noun

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

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Words nearby equivalent focal length

equivalence relation, equivalency, equivalent, equivalent air speed, equivalent circuit, equivalent focal length, equivalent weight, equivalve, equivocal, equivocally, equivocate

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use equivalent focal length in a sentence

To his critics, he explained—sometimes at painful length—his reasoning against it.
Jeb Bush’s Unseen Anti-Gay Marriage Emails|Jackie Kucinich|January 9, 2015|DAILY BEAST
It's cheesy and ludicrous and, therefore, delightful; it's the reading equivalent of hate-watching.
‘A Gronking to Remember’ Speed Read: 8 Naughtiest Bits|Emily Shire|January 7, 2015|DAILY BEAST
Desert Golfing is the gaming equivalent of putting TV on in the background.
Lost For Thousands of Strokes: 'Desert Golfing' Is 'Angry Birds' as Modern Art|Alec Kubas-Meyer|January 2, 2015|DAILY BEAST
Right now it looks like the diplomatic equivalent of one hand clapping.
Obama’s One Hand Clap With Castro|Doug McIntyre|December 24, 2014|DAILY BEAST

“It seems that the different standard is (based on) the length of the beard and outwardly display of piety,” Hamdani said.
Disco Mullah Blasphemy Row Highlights Pakistan’s Hypocrisy|Shaheen Pasha|December 21, 2014|DAILY BEAST
It ended on a complaint that she was 'tired rather and spending my time at full length on a deck-chair in the garden.'
The Wave|Algernon Blackwood
These sections also have vibrations of their own which are of shorter length and more rapid motion.
Expressive Voice Culture|Jessie Eldridge Southwick
Besides this fundamental or primary vibration, the movement divides itself into segments, or sections, of the entire length.
Expressive Voice Culture|Jessie Eldridge Southwick
At length only four or five flames remained, feebly wavering in their pools of melted wax.
The Boarded-Up House|Augusta Huiell Seaman
The experience of the Jesuit fathers at Port Royal is related at length, from their own point of view.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various