Thanks, Godfrey. You saved me a couple hundred dollars. Unfortunately, there is no monetary reward. :-)
Jack --- Godfrey DiGiorgi <[EMAIL PROTECTED]> wrote: > This is the set that I have: > > <http://www.bhphotovideo.com/bnh/controller/home? > O=productlist&A=details&Q=&sku=41073&is=REG&addedTroughType=search> > or > http://tinyurl.com/e3wdt > > There are no electronic contacts to transmit aperture information to > > the body, the mechanical aperture coupling is there for cameras that > > use it. Neither is there any AF drive pass-through, so "Quick Focus" > > wouldn't apply. > > All lenses operate as manual focus, M series or K-mount lenses with > auto-iris operation. With the DS, this requires Manual exposure mode. > > Godfrey > > > On Jan 24, 2006, at 3:12 PM, Jack Davis wrote: > > > Godfrey, > > Can you (or someone) tell me if the "B" tubes allow A-auto program > > operation? If not, which tube set? > > Not that I intend to use Program setting, but the meter/shutter > > require > > an "A" capability lens in order to allow "Quick Focus" operation > with > > the MZ-S. > > > > Thanks! > > > > Jack > > > > --- Godfrey DiGiorgi <[EMAIL PROTECTED]> wrote: > > > >> I bought a set of Pentax Automatic K mount tubes from a vendor on > >> Ebay last year. NOS ... in box with case and all papers they were > $65 > >> > >> or so. Automatic means that they operate the auto-diaphragm > >> mechanism ... no electronic connection so all lenses operate as > >> manual K-mount lenses do. > >> > >> Godfrey > >> > >> On Jan 24, 2006, at 9:58 AM, [EMAIL PROTECTED] wrote: > >> > >>> Anyone got some K-mount extension tubes for sale? Cheap? > >>> Uncoupled is fine. > >>> I've got an experiment in mind. > >> > >> > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam protection around > > http://mail.yahoo.com > > > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
