f_number | ||
1. | [ noun ] the ratio of the focal length to the diameter of a (camera) lens system | |
Synonyms: | stop_number speed focal_ratio | |
Related terms: | ratio | |
f_number | ||
1. | [ noun ] the ratio of the focal length to the diameter of a (camera) lens system | |
Synonyms: | stop_number speed focal_ratio | |
Related terms: | ratio | |