Which brings another question to my feeble mind. Would adding an additional 50mm of extension to a lens that is already extended increase exposure by one stop, or is this too simple to be feasible? :-)
Bill ----- Original Message ----- From: "Anthony Farr" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, April 15, 2002 10:26 AM Subject: Re: New Toys > The helicoid on the 100/4 Macro extends 50mm on its own. Add that to a 50mm > tube and you get 100mm extension therefore 1:1 magnification. > > Regards, > Anthony Farr - 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 .
