focal length

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  • noun

Synonyms for focal length

the distance from a lens to its focus

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References in periodicals archive ?
5 times as accurate as the results of Rieke-Zapp and Nearing (2005) at the same distance, L, due to the use of a lower focus length of 19 mm.
Specifications of the Nikon D2H camera and the calibration information for the left and right cameras Focus CCD CCD Corrected length f size pixel size focus length Camera (mm) (pixels) SCCD (mm) (mm) Left 50 2464 x 1632 0.