According to my test (with *ist D), distance (AF) using an FA lens does not influense flash output AT ALL. But linking AE to the Foucus point does. Jens
Jens Bladt mused: > > Kostas wrote: > >I believe it was > >mentioned previously that on the -Ds it does not do TTL if you don't > >have an AF lens. This is a limitation induced with extortion in mind, Why are people so fast to make unfounded accusations like this? > Is this really true! What would AF have to do with flash duration? Distance, distance, distance. The digital contact (introduced on the AF lenses) doesn't just tell the camera body the lens identification code and current aperture (and focal length, for zooms); it apparently also reports the focus distance. While there is no official confimation from Pentax, it is believed that the metering logic makes some use of this information. (Nikon, of course, made a big feature of their 3D Matrix Metering, introduced at about the same time. Pentax don't even mention it).
