| 单词 | t number |
| 释义 | > as lemmasT number T number n. ΘΚΠ society > leisure > the arts > visual arts > photography > action of taking photograph > technical factors > [noun] > aperture value T number1951 T stop1956 1951 G. H. Sewell Amateur Film-making (ed. 2) iii. 32 The T number indicates the actual light transmission obtained by measuring instruments. 1961 G. Millerson Technique Television Production iii. 38 Modern lenses are sometimes marked in ‘T’ numbers rather than f-numbers. T number T stop n. [transmission n.] Photography a measured point on a scale of aperture values based on the actual light transmitted through the lens of a camera; similarly T number. ΘΚΠ society > leisure > the arts > visual arts > photography > action of taking photograph > technical factors > [noun] > aperture value T number1951 T stop1956 1956 J. J. Rose Amer. Cinematographer (ed. 9) 133 The new method of calibration will be known as the ‘T’ Stop system, the T denoting transmission of light and the ‘T’ stops representing absolutely accurate light measurement. 1977 J. Hedgecoe Photographer's Handbk. 344 ‘T’ stops, more accurate measurement of light entering a lens than ‘f’ numbers. < as lemmas |
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