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Значения термина f number на английском

испанский
razón focal

The ratio of the focal length to the diameter of a (camera) lens system.

        razón focal
        Использование термина f number на английском
        1
        (For example,-theteacher holds up the letter "F "; Number 1 of the second aisle calls, "Flour").
        School, Church, and Home Games
        Translations for f number