The aperture simulator is there to support the aperture ring. The 645
lens mount is electro-mechanically equivalent of a KFA lens mount.
Pentax could then use exactly the same electronics in the 645 and all of
their 35mm cameras, a significant cost savings. I expect that the 645D
will no longer support the aperture ring but will change the aperture
from the camera body. But who knows.
Lucas Rijnders (Privé) wrote:
>Op Wed, 11 Oct 2006 22:56:57 +0200 schreef frank theriault
><[EMAIL PROTECTED]>:
>
>
>
>>On 10/11/06, Tom C <[EMAIL PROTECTED]> wrote:
>>
>>
>>>I think I'll go buy all the used 645 glass. ;-)
>>>
>>>
>>Will the 645D have an aperture simulator? ;-)
>>
>>
>
>I know you were kidding, but I actually looked at a 645 and A-lens: they
>do appear to have the same setup as the Ka-mount, including the aperture
>actuator and (redundant?) aperture simulator. Why is it there? Solely to
>support 6x7 lenses?
>
>
>
--
Things should be made as simple as possible -- but no simpler.
--Albert Einstein
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