Kenneth, You can't always judge a thread by its title.
Boris was considering a supplementary question, regarding an F 85/2.8 Soft for which he was awaiting delivery. The pertinent quote from his message (that you'll find in his part of the "Original Message") is, "But then I suppose it means that my soon to arrive F 85/2.8 soft would have A position too." regards, Anthony Farr ----- Original Message ----- From: "Kenneth Waller" <[EMAIL PROTECTED]> > Anthony, > sorry to disagree, but I hold in my hands @ this very moment, a 70-210 > f4-5.6 SMC Pentax - F that has -- ta dah - an "A" position on the aperture > ring. Bought in late 1988. I use it a lot and like the results. It has been > totally trouble free. The only complaint I have is the end rotates for > focus, making the use of a polarizer a little more complicated than it could > be. > > Kenneth Waller > ----- Original Message ----- > From: "Anthony Farr" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, August 20, 2003 4:50 AM > Subject: Re: Views on the F 70-210 > > > > Boris, > > > > Sorry to disappoint, but this lens lacks an "A" position. The logic in > its > > omission is that the soft effect changes with aperture so Pentax thought > it > > undesirable to use program or Tv mode. The lens's contemporary camera > > bodies could do Av or metered manual without the "A" setting, and body > > control of aperture was at the time unforeseen. > > > > Sometime soon I really must get down to a store with my own F85 Soft and > see > > how an *ist regards it, because even though it lacks an "A" button on the > > aperture ring it has "A" contacts on its mount. Because of its vintage > its > > aperture actuating lever should have true linear proportionality (which > does > > not exist on pre-A series lenses). > > > > IMO Pentax should retrofit these lenses with an "A" type aperture ring at > a > > nominal cost, because they were so recently made. In fact the FA version > > was only dropped from the current lens list immediately before the *ist > > became available, and was outwardly identical except for the colour of the > > finish (black vs slate grey), was optically identical, and AFAIK only > > differed in having an MTF chip fitted. > > > > regards, > > Anthony Farr > > > > ----- Original Message ----- > > From: "Boris Liberman" <[EMAIL PROTECTED]> > > > > > > > Hi! > > > > > > On Mon, 18 Aug 2003 22:24:25 -0600 > > > "William Robb" <[EMAIL PROTECTED]> wrote: > > > >Any post M series lens has the A position. This includes A series, F > > > >series and FA series lenses. > > > > > > > >William Robb > > > > > > I see. Well, I did not know that. But then I suppose it means that my > > > soon to arrive F 85/2.8 soft would have A position too. That's way > > > cool. > > > > > > Still, I am curious - what is the difference then between F and FA > > > lenses? Something to do with the way FA lenses "talk" to the camera > > > body? > > > > > > I am sorry I am taking this subject off-track, but I hope noone is > > > offended. > > > > > > Thanks. > > > > > > Boris > > > > > > > > >
