This is an f-stop timing calculator to be used in a photographic darkroom. 'Way Beyond Monochrome' by Ralph W. Lambrecht and Chris Woodhouse gives a brilliant introduction into f-stop printing. Some chapters are available for free from waybeyondmonochrome.com
Full Specifications
What's new in version 1.0
General
ReleaseMarch 4, 2011
Date AddedMarch 4, 2011
Version1.0
Operating Systems
Operating SystemsiOS
Additional RequirementsCompatible with iPhone, iPod Touch, and iPad. Requires iOS 3.1 or later. iTunes account required