KK> You can go to Av or Manual, if you are setting the aperture from the
KK> body. The obvious exception is the apertures not possible with the
KK> selected FL.
Which for my style is the usuality, not an exception. But I will be
getting a fixed aperture wide zoom ASAP. I hope the Tokina will come
quickly with the ATX 4/12-24 digital zoom.
I usually use exposure lock set to shutter release button and AF set
to back button. That way, I can lock exposure with spotmeter or
centerw. and keep it half-pressed to keep it and AF independently on
that with my thumb. If I want to zoom, I would have to remeter the
scene with a variable aperture zoom. But as I wrote, YMMV :)
Good light!
fra