My own experiments with my (P)Z-1p indicate that the distance information is also used in TTL flash metering. For example, if the lens is focused on a distant subject, the flash will properly expose it, at the cost of overexposing closer objects.
Rick --- Dario Bonazza <[EMAIL PROTECTED]> wrote: > It will probably affect evaluative metering. > Focusing info can help the > camera "recognizing" the type of situation, > correcting 16-segment exposure > evaluation according to the data base stored in > camera memory. Not sure if > it only works in scene modes or in any shooting mode > usig multi-pattern > metering. > > I think it (fortunately) won't affect spot and > center-weight measurements. > > Dario > > ----- Original Message ----- > From: "Shel Belinkoff" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Wednesday, April 05, 2006 11:37 AM > Subject: Re: F v FA Lenses > > > > How does that help make a better photograph? If > the camera/lens will > > focus > > where the photographer wants the focus to be, what > difference does it make > > if the camera knows the focusing distance? > > > > Shel > > > > > > > >> [Original Message] > >> From: Dario Bonazza > > > >> Some years ago I've been confirmed by a Pentax > designer that FA lenses > > have > >> more advanced electronics, telling the camera the > focusing distance > > (among > >> other things). That's the reason for having > FA-series prime lenses. > > > > > > http://www.photo.net/photos/RickW __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
