f-number English (P6790)
ratio of the system's focal length to the diameter of the entrance pupil. Sample: 4 (generally written "ƒ/4") for a lens with 200 mm focal length using an entrance pupil diameter of 50 mm. English
| Language | Label | Description | Also known as |
|---|---|---|---|
| British English | No label defined |
No description defined |
Data type
Quantity
Statements
Q27151329 (Deleted Item)
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Q862169 (Deleted Item)
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property proposal discussion English
Q21510860 (Deleted Item)
maximum value English
100
minimum value English
0.1
constraint status English
Q21502408 (Deleted Item)
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Q21510860 (Deleted Item)
minimum value English
1
maximum value English
25
constraint status English
Q62026391 (Deleted Item)
constraint clarification English
please double check value. It may not be accurate. (English)
0 references