on 10.03.03 13:16, P�l Jensen at [EMAIL PROTECTED] wrote: > According to someone who are into the technicalities of the Pentax lens mounts > the mount of the new FA J lenses is not KAF2 as it uses a completely different > way of aperture control. Is this the first lenses with KAF3 mount? > Electronically controlled aperture a'la EF mont? Who knows, patent for KAF3 have been around for a while. I wouldn't be suprised if new lenses to be shown later this year will have built-in ultrasonic motors. Now the question would be" "will they work on older bodies"? For instance Nikon's AF-S lenses work using ultrasonic motors even with such a venerable bodies like F4 (but I am not sure of this - Bruce, can you confirm this?). Only IS (VR) lenses require completely new bodies.
-- Best Regards Sylwek
