F Number
nounverified·updated May 18, 2026
the ratio of the focal length to the diameter of a (camera) lens system
Framework senses
- §1
- the ratio of the focal length to the diameter of a (camera) lens system
- §1 · legacy_primary
- the ratio of the focal length to the diameter of a (camera) lens systemDR-088 backfill from the noun definition column