Yep, though, there's that MTF program line: it's the one my camera's set to all the time cause it's not only going for the sweet spots of a given lens, but usually about the closest to the exposure I'd choose unless it's very bright.
Cause we have this 'Hyperprogram' thing going on, it's just a matter of turning a dial to shift things around with a K20d, though.
For me, that's usually I just up the aperture dial a few stops: if it's bright and I'm in Program, I probably can't see too well, so more DOF is usually good.
Other than that, it's a good program line, though, if you're steady when it's *not* very bright.
(Me, I'm like, 'Wouldn't it be nice to be able to *program* the program line?
)
Still, if you have that MTF option, it'll give you a good opinion on what your lens' sharpest aperture is, cause it'll tend to want to be there.
Once you know, you can use aperture priority.
(Cheat sheet, though: FA 50s are real nice from f4-f13: plenty of room there: I like to stay past 2.4 in general, and, well, it's a good lens. The kit lens, to my experience, is happiest between f8 and f11 and near the middle of its range.
)