Another way would be (or have been) to incorporate the current 'green button' function into the shutter release, IOW to stop-down-and-meter in the instance before the shutter is released. This would add a small delay between pressing the shutter release and the actual shutter operation but would give automatic (stop down) metering.
Sven -----Ursprungliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Gesendet: Freitag, 12. Marz 2004 21:17 An: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Betreff: daddy-D John had a complicated method for getting a *istD successor to correctly operate K and M lenses with camera-aperture-control. Nikon has a similar scheme in the D2h to allow matrix metering and such with older CPU-less lenses, which is odd since the FA of 1983 could do it without the manual input of information. Wouldn't it be simpler to build a daddy-D with an aperture-tracking-tab so that it could meter correctly at full aperture, but NOT attempt to overcome the difference in aperture-lever travel between K/M and A/F/FA lens lines. It would let you use your K and M lenses in aperture-priority and manual just like you always did, and more modern lenses with all the newfangled modes. Pentax could top this off by re-issuing some of the older lenses in FA variants for people who just have to have "P" mode with their 18/3.5. If the camera "knows" when it's got an A or better lens mounted due to electronic communication, it could refuse to go into advanced exposure modes unless it found a modern lens attached--just give a snippy error message. DJE
