I always want a low f/, because it helps focussing -- both automatic and manual focus benefit from more light being available. But often, one wants f8-f11 for the actual shot, to get sufficient depth of field. Not always, but often.

Which is why flash photography goes hand in hand with macro photography -- the flash is needed to compensate for the tiny aperture (which lets in very little light).


Dunno -- because it makes things look BIG! (?)