[Leica] Leica modifying M-mount for digital M?

[abridge at gmail.com (Adam Bridge)]

RFID sounds like an overkill solution to me - you have to run a
transmitter in the camera body and then "read" the lens. Just a simple
mechanical solution/code would probably work better.

I hear the issues with RFIDs - too much info too easy to get. Although
I thought that generally they transmit a relatively generic, although
unique, ID that then can be connected to the data - so a World Cup
ticket would give some long number that would be looked up - although
packing in address/passport data would be possible - just not a good
idea.

AB


On 6/3/06, Douglas Sharp <douglas.sharp@gmx.de> wrote:
> Maybe this pulls the right one -I heard a rumour (as I already wrote on
> the CVUG list) that it would be an RFID with wireless transmission of
> data to the software, you can bet the transponder  would be implanted in
> the body and each lens would get an RFID tag.
> All sorts of dodgy surveillance tricks are connected with RFID tagging -
> for example tagged World Cup tickets transmit name address ID/passport data
> etc. to anyone with a suitable reader.
> Douglas
>
> Adam Bridge wrote:
>
> > Bar code? Now pull the other one! (imagining a little laser sensor
> > that scans the lens mount. Blinding nearby people, starting fires,
> > shooting down incoming ballistic missles, detonating IEDs)
> >
> > There are things I don't know about the very wide lenses which use
> > external viewers for the frame lines - do they have cams also that
> > identify their focal length? Or are the lenses that have matching
> > frame lines the only ones?
> >
> > It would SEEM to this casual observer that the probelm would happen
> > with lenses that are wider than 35mm. Or maybe 24mm.
> >
> > I'm pondering what the camera would DO with this information once it
> > has it. Is it going to jack up the sensitivity of the sensors on the
> > periphery of the chip? Somehow adjust an optical property between the
> > back of the lens and the sensor (a neat but scary idea). Some bit of
> > software magic to do . . . what?
> >
> > If I need to pay $125 for my four lenses I'm do it, be a bit grumpy.
> > I'll be MORE than grumpy if I can't then use them on my M6 again.
> >
> > This is less than I paid for the adaptors to mount my R glass on my
> > 1Ds Mk II.
> >
> > Still, you wonder if Leica didn't NEED to make an optical change that
> > a bit of stand-off would give them? Pushing the lens a tad out would
> > give them that much room behind the works for some (add impressive
> > optical words here) good reason.
> >
> > My $0.02
> >
> > Adam
> >
> > On 6/3/06, Didier Ludwig <rangefinder@screengang.com> wrote:
> >
> >> I have just read in another list, from a quite reliable source not
> >> completely unknown on the LUG, that Leica plans to modify the M-mount
> >> for the digital M:
> >>
> >> >The Leica M digital will have a modified M-mount
> >> >with a bar code which tells the camera the focal length.
> >> >The correct frameline will then be electronically changed.
> >> >While Leica will sell kits at about $125 each to update Leica
> >> >M lenses to the M digital it remains to be seen if those kits can
> >> >be used on non Leica made lenses.
> >>
> >> My personal comment: The only reason to buy such a (anyway
> >> overpriced) camera is when one has a closet full of M and LTM lenses.
> >> If one needs to "upgrade" every lens for $125 to make it functional
> >> on the digital M (and maybe even non-functional on the film bodies),
> >> he might as well change the system. Leica - one step forward, two
> >> steps backwards.
> >>
> >> Didier
> >>
> >> ps: the R-D1 is getting more and more interesting for me - it takes
> >> M-mount lenses!
> >> ;-)
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> Leica Users Group.
> >> See http://leica-users.org/mailman/listinfo/lug for more information
> >>
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
>
>
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