----- Original Message ----- From: "Collin Brendemuehl" Subject: I don't understand


When I put either the FA28/2.8or the FA50/1.4 and use either the
internal or a shoe-mount flash, the shutter speed goes to 1/25.
But when I use an "A" lens it goes to the desired 1/180.
Why?

The FA lens supplies more information to the camera and allows dynamic shutter speed adjustment when using flash. A series and earlier don't supply such niceties, and so the feature is disabled. I suspect Pentax could enable it if they desired, the A lens does transmit aperture, which is all that should be required, but they want to sell new lenses, and so disable some features.

William Robb


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