But nobody yet listed the mayoer disadvantage of CU lenses over extension tubes... :
CU lenses make the focusing closer by MAKING YOUR LENS WIDER! Yes, your 100mm prime will become anything to 60mm with CU lenses, thus allowing you to focus close but with different perspective than a 100mm on tubes or macro. For some, this is a major disadvantage. Frantisek - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

