On Aug 23, 2007, at 5:33 AM, Cory Papenfuss wrote: > ... 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 -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
