Brightness Value?

Discussion in 'Ricoh GR (APS-C) Forum' started by m.davidtaub, Mar 6, 2014.

  1. m.davidtaub

    m.davidtaub SC Regular

    78
    Sep 20, 2013
    Montpellier, France
    Just above Exposure Bias in the GR exif data there's this 'Brightness Value'. Simply curious what this refers to? Anyone know?. Thanks.