The Kodak Duex camera has a helical device to extend the lens. On that particular camera, it is not used for focusing, just to extend the lens to a hyperfocal distance, and bring the lens into the body for storage. The tube that has helical threads is about 30mm long, and about 40mm in diameter on the inside.
Because your lens is so short and has a small aperture wide open, I would place it at a hyperfocal distance, and not worry about focusing. Also, because the lens is so wide, I think that the helical barrel would impede with the lens's coverage, unless you got a really wide helical focusing device or cut down the Duex one. John ----- Original Message ----- From: "david hajjab" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, September 03, 2002 9:33 AM Subject: [Cameramakers] Helical Mount > I am making a 6x12 Medium formar camera and I would > like to use an old 47 f.8 super angulon that I have. > I would prefer a helical mount over a bellows. Does > anyone know where I could find one? > David > > __________________________________________________ > Do You Yahoo!? > Yahoo! Finance - Get real-time stock quotes > http://finance.yahoo.com > _______________________________________________ > Cameramakers mailing list > [EMAIL PROTECTED] > http://rmp.opusis.com/mailman/listinfo/cameramakers _______________________________________________ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
