snip >If you use a camera with compur or central shutter (in the lense) - I dontīt >know the exact english word- like Rolleiflex 6x6, Mamiya 67 or 7 etc. > Ferdinand snip Horizontal and vertical shutters are focal plane shutters (although they are not exactly in the focal plane since we prefer to have the film there :-)). The Compur shutter falls into the category of leaf shutters (I assume, because the parts look a little bit like leafs?!). Nikoneers please correct me if I am wrong, being not a native english speaker myself. Markus --------------------------------------------------------------------- Markus Berheide Phone: (203) 431-5318 Schlumberger-Doll Research Fax: (203) 438-3819 Old Quarry Road Ridgefield, CT 06877-4108 E-Mail: [EMAIL PROTECTED] ----------------------------------------------------------------------