>> ... Unless there is a physical, mechanical linkage between the mirror,
>> shutter, and focus motor (unlikely). ...
>
> In Pentax DSLR cameras, the operation of the iris actuation, mirror
> and shutter mechanisms are mechanically linked very tightly together.
> The iris actuation system can operate as a partial cycle for DoF
> Preview, but flipping the mirror up and operating the shutter
> requires the complete cycle to operate. To do anything else requires
> a mechanical redesign. This is one of the reasons why current Pentax
> DSLRs support a mirror pre-fire operation but not a mirror lock up
> mode. The focusing system is mechanically separate.
>
> So it's not "just programming". Capisco?
>
> Godfrey
I stand corrected on the mechanical interconnects.
Cheers,
-Cory
--
*************************************************************************
* Cory Papenfuss, Ph.D., PPSEL-IA *
* Electrical Engineering *
* Virginia Polytechnic Institute and State University *
*************************************************************************
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