> It would probably be better technically if they went the whole route
> and dispense with the mechanical iris actuation in its entirety. It
> would be more consistent and more accurate to have an in-lens servo
> do the actuation and reduce the body couplings to a 100% electronic
> setup, call it KE-mount. K-mount lenses would work the same way that
> M42 lenses do now but without needing a mount adapter. I'm sure
> they've thought of this, just as Nikon has, and not done it for the
> same reasons.
>
> Godfrey
>
That would be somewhere between the evil of removing the
aperture coupler and the Canon FD->EOS switch.
Just to be a nice thorn in everyone's anti-aperture-coupler's
side, consider that proposal. How would everyone feel if these nice,
newish, fancy auto-focus (F, FA, DA, etc) lenses that you all own suddenly
became stop-down metering only. Pentax could state that they're new mount
is compatible with all K-mount lenses ever made... just like they do
now (some restrictions apply).
It would certainly save more money to manufacture a camera without
a precision actuator that has to move a very accurate amount in a few 10's
of milliseconds than it saved by removing a much less precise (in both
distance and time) *sensor*.
A little more severe, but would have the exact same results....
millions of lenses would still work, but not as they were intended.
-Cory
--
*************************************************************************
* Cory Papenfuss, Ph.D., PPSEL-IA *
* Electrical Engineering *
* Virginia Polytechnic Institute and State University *
*************************************************************************
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