Sorry if I was unclear, Bob. As I replied to Godfrey's post, the K10D can establish the identity of any Pentax autofocus lens, whether the aperture ring is set to A or not. :-)
It's no big deal, though. It just means that communication and power supply to the in-lens chip probably goes via some of the contacts that was added to the bayonet of autofocus lenses. Jostein On 12/6/06, Bob Sullivan <[EMAIL PROTECTED]> wrote: > And the answer is??? > > On 12/5/06, Jostein Øksne <[EMAIL PROTECTED]> wrote: > > I think we're talking about two different things. > > > > There's a custom setting that controls whether the digicam will allow > > lenses to be off the "A" setting. With this turned off, the camera > > will just display "F - - " in the LCD and refuse to work. Or to > > recognise that a lens is attached, if you like. This is the same for > > both *istD and K10D. I don't know for the other DSLRs, but I suspect > > they work the same way. > > > > What I was thinking about, though, was what goes into the EXIF data of > > the image file. I interpreted Bob S. and Godfrey to mean that lens > > info for AF lenses was not written into EXIF with the lens off the "A" > > position, so I had to test for myself when I got home from work. > > > > Jostein > > > > On 12/5/06, Adam Maas <[EMAIL PROTECTED]> wrote: > > > Interesting. The K100D certainly doesn't recognize an A lens off the A > > > position. Perhaps this is inherent in the difference between the A's > > > retractable A pin and the F and later's non-retractable one. > > > > > > It also could be a difference between the K10D and other DSLR's. Most of > > > the AF film bodies still recognize lenses off A. > > > > > > -Adam > > > > > > > > > Jostein Øksne wrote: > > > > You sure Godfrey? > > > > I just tested my K10D, and it recognise all my FA lenses *and* the > > > > Sigma AF with the aperture ring off the A position. > > > > > > > > Jostein > > > > > > > > On 12/5/06, Godfrey DiGiorgi <[EMAIL PROTECTED]> wrote: > > > > > > > >>Yes, that's how my cameras behave. > > > >> > > > >>G > > > >> > > > >>On Dec 5, 2006, at 5:10 AM, Jostein Øksne wrote: > > > >> > > > >> > > > >>>Do you mean that the camera doesn't recognise the lens if the aperture > > > >>>ring is set to other than A? > > > >> > > > >> > > > >>-- > > > >>PDML Pentax-Discuss Mail List > > > >>PDML@pdml.net > > > >>http://pdml.net/mailman/listinfo/pdml_pdml.net > > > >> > > > > > > > > > > > > > > > > > > > > -- > > > PDML Pentax-Discuss Mail List > > > PDML@pdml.net > > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > > > > -- > > PDML Pentax-Discuss Mail List > > PDML@pdml.net > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
