Hi guys, wondering if anyone here is able to help.
I have a A7Rii, have been using it with a Sigma MC-11 adaptor and Canon EF 17-40 F4L with no issues whatsoever. But recently, my camera doesn't show the Phase Detection Area on the screen despite the option being set to "on" in the menu. Resetting the whole camera and configuring it to my settings works. But after a shot has been taken, the "box" on the screen disappears.
Hope to get some advice here. Thanks!