On Wed, 9 Feb 2005, Peter J. Alling wrote: > The M lenses and older K lenses have no electronics, the A lenses allow > aperture control from the > camera, which allows program mode on any Pentax body and full aperture > metering on the *ist-D and Ds. > Which is the most important difference. Before I bought a *ist-D I > really didn't care about that feature. of the As.
Your K1000 cannot see the difference between K and A lenses. If you put an A lens on the A position and fire the K1000 shutter it will just use the minimum (highest number) aperture the lens supports. But why do that :-) Kostas
