25 Jan 02, Mark Roberts <[EMAIL PROTECTED]> wrote: > Tim wrote: > >...the auto-aperture mechanism doesn't open-close the > > diaphragm... much less at shutter speed. It only sets > > the limit stop. When the mirror is released, the mirror > > mechanism drives the diaphragm to close down to the > > stop that was preset by the auto-A mechanism. > > Actually, in k-mount lenses, the mirror mechanism doesn't > *drive" the diaphragm; it releases a catch and *allows* > the spring within the lens to pull the diaphragm closed to > the pre set stop.
Your right. Poor choice of words on my part... getting caught up in the discussion and not taking proper time. Hmmm... this whole thread started as a "complaint" about the image ghosts/ poor bokeh caused by using a minimal number of blades. Did that ever conclude? Or was it just enough to vent and move on. ;-) Regards, Tim - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
