Hi, All the pieces required to digitally control a USM or IF lens are already in place in the K-AF2 mount. The power contacts for PZ lenses are present, and there is already a data link between lens and body (for MTF/focal-length/focus-point info from FA lenses). It is conceivable that this could already be a two-way connection, or that we're going to get just another contact on the existing mount for body-to-lens transfers
-- Kristian On Saturday, Aug 31, 2002, at 09:57 Europe/Dublin, Lawrence Kwan wrote: > On Fri, 30 Aug 2002, Alan Chan wrote: >>> From: Henry Chu <[EMAIL PROTECTED]> >>> I think Pentax did try to their best maintain the K-mount but they >>> have >>> admitted defeat finally. That's why suddenly they decided to carry >>> out >>> so much R&D effort to move forward. > > On the contrary, the patent described a lot of details in backwards > compatibility of KAF mount lenses. So it looks more likely to me that > it > is a evolution of the K mount. > >>> BTW, there is one more patent application I found relating to the >>> proposed convertor for the new lens mount to the existing mount: > > There is also a description of a "rear converter"; could this be the > image > stabilization convertor for existing lenses? > >>> No. 20020118963 Camera system having a communication system between >>> a camera body and a photographing lens > > The main function for this patent is the control of image stabilized > lenses. > On related notes, there were also recent patents of image stabilized > binoculars, mirror box design for digital SLR and camera > controls/interface on the back cover of the camera. > > > -- > --Lawrence Kwan--SMS Info Service/Ringtone Convertor--PGP:finger/www-- > [EMAIL PROTECTED] http://www.vex.net/~lawrence/ -Key ID:0x6D23F3C4-- >
