Let me just add that this whole thing is about a fundamental change to wholly "electronic" metering where the aperture value from the lens CPU is used. This also opens up for wholly electronic aperture setting in lenses compatible with the *ists.
Pål ----- Original Message ----- From: "Pål Jensen" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, July 04, 2003 3:20 PM Subject: Re: Lens compatibility in perspective (WAS: Re: D-ist blurb in "AmericanPhoto" magazine) > Arnold wrote: > > >Can you > > explain to me why the *ist D (in aperture priority mode) meters at all > > apertures with M42 lenses but not with plain k-mount lenses? > > > Yes. It is because the aperture lever in the camera opens up K-mount lenses. The > aperture lever is controlled by a motor and making K-mount lenses work it needs > Frankenstein type of engineering making the camera recognising that it was not an A, > F, FA or FA-J lens, not a screw mount lens either, and then start the aperture lever > motor while metering . It would be expensive and battery hungry solution only to > please less than 1000 people world-wide. > The unfortunate fact is that too many Pentax buyers are too cheap and don't want to > pay for costly features that will only please the few. You can always hope for a > higher end digital body that uses two separate metering systems; one for K and M > lenses and one for the rest. > > Pål > > > >
