Archived posting to the Leica Users Group, 2009/04/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]You missed the point. Bruce. On 2-apr-2009, at 18:44, wildlightphoto at earthlink.net wrote: > On 2-apr-2009, at 5:39, Lawrence Zeitlin wrote: > >> >> On Apr 1, 2009, at 10:20 PM, Doug wrote: >> >>> Lawrence Zeitlin wrote: >>> >>>>>> >>> a scanning sensor need only cover the frame in >>> 1/30 to 1/50 second. That's the speed the shutter slit moves in film >>> Leicas. Rotating the sensor strip would not be a problem at that >>> slow >>> speed. Still a mechanical kludge however. >>> <<< >>> >> Doug answered: >> >>> Even if the sensor strip could scan at that speed and rotate enough >>> (variable rotation for a variety of lenses) anyone who wants to use >>> electronic flash is SOL. The scan strip would also have to cover >>> the frame >>> at a constant speed, something which mechanical shutter blades >>> don't do. >> >> >> Doug, >> >> I'm not about to design a full frame Leica. BUT moving a sensor 1 >> 1/2" at a constant speed is no big deal in this day of linear >> motors and electronic speed measurement. Tilting a sensor a couple >> of degrees as it travels is no big deal either. The disc drive in >> your computer moves a read/write head to a variety of positions in >> a 30 degree arc in a tiny fraction of a second. It is hard to >> believe that all the imaginative people in Solms couldn't come up >> with a way make a full frame Leica, at least for lenses 50 mm or >> longer, perhaps a digital M3. Reserve the M8 for wide angle >> fanatics. I'm still hoping for a digital back to replace the film >> inspection door on my M series film cameras. If one sold for $1000 >> or less I'd buy it in a minute. > > The whole point of a full-frame M is to use the full image circle of > wide-angle lenses, and there's no need to go to a 'scanning back' > or any > other full-frame solution to avoid angle-of-incidence problems if the > camera is restricted to 50mm or longer lenses. > > Doug Herr > Birdman of Sacramento > http://www.wlidlightphoto.com > > -------------------------------------------------------------------- > mail2web.com ? Enhanced email for the mobile individual based on > Microsoft? > Exchange - http://link.mail2web.com/Personal/EnhancedEmail > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information