Archived posting to the Leica Users Group, 2003/12/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 6:58 PM -0500 12/2/03, Dante Stella wrote: >Does someone have a quickie formula from going from % of light >transmitted to stops difference from 100% > >e.g., 50% transmission = -1 f/stop? (that's an easy one but you get the idea) > >Thanks! Percentage = 100 x 2 exp(f) where f is the stop variation as per your example. - -- * Henning J. Wulff /|\ Wulff Photography & Design /###\ mailto:henningw@archiphoto.com |[ ]| http://www.archiphoto.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html