T-stops are used primarily for motion picture lenses - they provide a more exact measurement of the light transmission of a lens then the slightly more theoretical f-stops.Originally Posted by StoneNYC
The difference is usually small, and generally only relevant in the exacting circumstances of motion picture work.
02-06-2013 01:23 AM
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“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2
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