. My biggest complain goes to DOF preview button which is too small and it is placed on completely idiotic position. Also custom setting doesn't allow me reconfigure buttons to have DOF preview elsewhere.
to be honest for me the DOF preview is the most useless feature on my cameras.
imho the viewfinder does not show a real impression of the DOF anyway.. yes even with the DOF button pressed.
i first noticed this with a 50mm f1.8.
wide open at f1.8 the images looked way more out of focus then they did via the viewfinder.
and when i press the DOF button i can hardly get something usefull from it either.
that´s why i use the display for reviewing the DOF.
but i must say i don´t shoot sports. maybe it´s more usefull there.
when you need quick reaction more then proper planing.