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f-number English (P6790)

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Revision as of 22:19, 22 August 2022 by imported>Raid5 (‎Added [fi] description: optisen järjestelmän polttovälin ja sisään tulevan valoa rajoittavan aukon suhde)
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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
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Language Label Description Also known as
British English
No label defined
No description defined

    Data type

    Quantity

    Statements

    instance of
    Q27151329 (Deleted Item)
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    subject item of this property
    Q862169 (Deleted Item)
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    Wikidata property example
    Q34788400 (Deleted Item)
    f-number English
    13
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    Q19819228 (Deleted Item)
    f-number English
    2.5
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    property constraint
    Q21514353 (Deleted Item)
    item of property constraint English
    no value
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    Q21503250 (Deleted Item)
    relation English
    Q21503252 (Deleted Item)
    0 references
    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)
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    see also
    ISO speed English
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    exposure time English
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