"In the initial review of the PZ-1, Pop Photo described the MTF program
and it did seem to work -- at least they described it as an aperture
priority mode with safety shifts. They dispelled early rumors that the
MTF program mode somehow "analyzed" the lens and scene for the best
quality; the aperture selected really just came from optimal aperture
information stored in each lens' electronics. With the zooms, this
optimal aperture changes with focal length."
The MTF information is coded into the lens chips of FA lenses, and a few
of the F lenses. The PZ-1, PZ-1p, and MZ-S bodies read this information
from the lens. There is no analysis of scenes. I have used mtf mode on
my 1p often.
Joe
