Paul, without intent to sound provocative here, but Nikon D7000
appears to move in the opposite direction - it offers compatibility
with non CPU'ed lenses by having mechanical aperture coupling. This
kind of introduction would make even less sense economically, but it
did happen. You're right - there is no immediate problem. Just yet.

Boris


On Mon, Nov 1, 2010 at 4:37 PM, P N Stenquist <pnstenqu...@comcast.net> wrote:
> I doubt that Pentax will support screw drive forever. It doesn't make sense
> economically. That's why I stopped buying FA and F glass several years ago.
> Now I have only the FA 50 and FA 35, both of which I rarely use. However, I
> suspect that  there will be a couple more generations of DSLR cameras with
> screw drive. It's not an immediate problem.
> Paul
> On Nov 1, 2010, at 10:27 AM, Steven Desjardins wrote:
>
>> The problem will be how long the bodies will continue to support the
>> screw drive.
>>
>> On Mon, Nov 1, 2010 at 9:08 AM, Boris Liberman <bori...@gmail.com> wrote:
>>>
>>> There is something that bothers me slightly. It is the mention of the
>>> fact
>>> that all future DA lenses except DA Limiteds will not be driven by
>>> screwdriver autofocus. It seems to make perfect sense as a prerequisite
>>> to
>>> introduction of EVIL camera. The converter to KAF4 (?) mount would only
>>> have
>>> to provide electric contacts and no mechanical coupling might be
>>> necessary.
>>> Or the coupling could be minimal.
>>>
>>> Yet it is a bit unsettling for those who have lots of "legacy" glass...
>>>
>>> Boris
>>>
>>> On 11/1/2010 1:34 PM, paul stenquist wrote:
>>>>
>>>> Well done. Especially the time travel part, where you were able to leap
>>>> ahead to November 29th!  :-).
>>>> Paul
>>>>
>>>> On Nov 1, 2010, at 1:47 AM, Miserere wrote:
>>>>
>>>>> It's all here, if you're interested:
>>>>>
>>>>>
>>>>>
>>>>> http://enticingthelight.com/2010/11/01/speaking-to-pentax-at-photoplus-expo-in-new-york/
>>>>>
>>>>> The 645D? What a camera... Lovely viewfinder too.
>>>>>
>>>>>
>>>>>  --M.
>>>>> --
>>>>>
>>>>>    \/\/o/\/\ -->  http://WorldOfMiserere.com
>>>>>
>>>>>    http://EnticingTheLight.com
>>>>>    A Quest for Photographic Enlightenment
>>>>>
>>>>> --
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>>>>> follow the directions.
>>>>
>>>>
>>>
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>>
>>
>>
>> --
>> Steve Desjardins
>>
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-- 
Boris

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