Jan 21 2005 Who knew?!Posted in Original LJ blog post,Photography Tv and Av stand for Time Value and Aperture Value. I always wondered how tv and Av emerged from shutter speed and aperture! I shall go away now and enjoy learning new facts which are probably old news to all who care *enthused* « ABC’s Warm fuzzies » no comments Your email is never published or shared. Required fields are marked * Name * Email * Website Comment