I really need to stop lurking and shoot more photo's. As a starter some dirt:
http://www.repiuk.nl/content/murky-water/ What you see is probably a film of iron oxide. Most amazing re the cracks and shifts in the iron oxide film. Toine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.