MediaWiki:Exif-exposuretime-format/qqq

Exif is a format for storing metadata in image files. See this Wikipedia article and the example at the bottom of. The tags are explained briefly and in further detail.

Parameters:
 * $1 - the exposure time written as a fraction of a second, for example 1/640 of a second
 * $2 - the exposure time written as a decimal, for example 0.0015625

'sec' is the abbreviation used in English for the unit of time 'second'.