1 Results for stop number

/สึ ตา ผึ นั้ม เบ่อ (ร)/     /stˈɑːp nˈʌmbɜːʴ/

หรือค้นหา: -stop number-, *stop number*
Too few results, automatically try *stop number*

WordNet (3.0)

focal ratio

(n) the ratio of the focal length to the diameter of a (camera) lens system, Syn. stop number, speed, f number

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