There's an ugly way around if Pentax does not change the firmware. I've got a set of extension tubes from Pentax that does NOT couple aperature. The smallest one is about 8 or 9mm of extension. These older tubes are better built than the Pentax auto tubes. Who the hell focuses at infinity anyways? grin.
-Lon
Andre Langevin wrote:
The meter works in aperture priority mode for all lenses, including K, M and M42, however, in aperture priority mode, K and M lenses will stay wide open during exposure no matter what aperture you choose on the lens. No metering is available in manual mode,
Hopefully you add this "however" in your second message...
however, all aperture values can be selected, and the lens really stops down in manual mode during exposure or when DOF previewing.
Arnold
...while others talk about taking out the K and M aperture lever... They won't need to do so, then.
Andre
