File:Flash luminosity.png

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Flash_luminosity.png ‎(694 × 134 pixels, file size: 6 KB, MIME type: image/png)

equation governing exposure time for needed flash

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	02:01, 27 April 2022		694 × 134 (6 KB)	Stephen (talk \| contribs)

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Horizontal resolution	37.8 dpc
Vertical resolution	37.8 dpc