Hi Guys, As much as I don't like Matt this video where he interviews Dr Hubert Nasse from Zeiss contains some interesting info (and displays Matt's ignorance of even basic optics) particularly at around 29 mins where there is an explanation of the reason that purple fringing occurs when using old fast optics.
https://www.youtube.com/watch?v=9cnEnRADDLo Cheers, -- Rob Studdert (Digital Image Studio) Tel: +61-418-166-870 UTC +10 Hours Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio -- 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.