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T number

noun

, Photography.
  1. one of a series of calibrations of lens openings according to the intensity of the light actually transmitted by the lens. : T


T-number

noun

  1. photog a function of the f-number of a camera lens that takes into account the amount of light actually transmitted by the lens
“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
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Word History and Origins

Origin of T number1

from T ( otal Light Transmission ) Number
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Example Sentences

“I read and I chant the Ten Commandments in Hebrew — the original language — every year,” said Allen, who pointed out that Jewish traditions typically don’t number the edicts the same way as Christians.

The problem isn’t number of beds, but who is occupying them.

This lets you make and receive calls from your AT&T number on Alexa-enabled devices, as well as from your iPad, Mac, and smartwatch.

“It is my small screw you to big companies that can’t number their styles,” Mr. Kinori said.

“It is my small screw you to big companies that can’t number their styles,” Mr. Kinori said.

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