An interesting photographic technique: http://proof.nationalgeographic.com/2016/01/05/piecing-together-time-in-the-ultimate-brain-puzzle/?utm_source=NatGeocom&utm_medium=Email&utm_content=pom_20160117&utm_campaign=Content&utm_rd=1642455031
Dan Matyola http://www.pentaxphotogallery.com/danieljmatyola -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
