MediaWiki:Exif-aperturevalue/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.

The aperture of a camera is the hole through which light shines. This message can be translated 'Aperture width'. Note, this is measured in APEX units which is 2*log2(f-number). See for this value in more traditional units.