>That's clear nowe. Except: what is "VF"? Visual >focus? = manual focus?
Viewfinder (I suspect).
>Recall that i was the f/1.8 35 mm, so i was getting full >aperture for focus acquisition if I had been using AF. But I >was using manual focus. Is it true that in manual focus, the >lens does NOT go to max aperture during focussing?
No, that is not true. The lens always stays at its maximum aperture (f/1.8 in this case) until you fully depress the shutter release to take the picture - at that instant it closes down to the selected aperture. That's the same whatever focus method you're using.