ISO 9336-1:2010 http://www.iso.org/ ISO standards and projects ISO - International Organization for Standardization 240 http://www.iso.org/iso/logo_iso.gif http://www.iso.org ISO 9336-1:2010 ISO 9336-1:2010 - Optics and photonics -- Optical transfer function -- Application -- Part 1: Interchangeable lenses for 35 mm still cameras This document reached stage 60.60 on 2010-06-07 , TC/SC: ISO/TC 172/SC 1, ICS: 37.040.10 Published standards