Originally posted by April.H I only ever see a red dot, am I missing something?
Yes, the red dot just let's you know which focus point the camera is going to work with.
One you have the red dot,
you have to focus manually (with the f/1.2)
or let the camera focus (with AF)
until you get the green hexagon to confirm the focus.
Even then, the green hexagon confirmation is only approximate,
and may not be good enough at f/1.2.
In that case, you're better to try "focus bracketing."
Focus as best you can,
then take three or five photos
in a range moving from a little bit too short
to a little bit too far, including where you think the right focus is.
Hopefully then, you get a keeper in your series.