Originally posted by Emacs So I wonder the most how accurate it is. I have a thought about buying the NEX-7 for using with A 50 f1.2, since I just can't nail the focus with the K-5 OVF, most of my successful f1.2 shots with this lens taken via the live view.
It's extremely useful when using focus magnification. When viewing the full frame it's useful but somewhat prone to error. It's much better at finding stronger contrast edges than weaker ones, so for example with a person's face/head that's backlit, it will light up as in-focus when the edge of their head is in focus, rather than their eyes, etc.
I've got the OLED VF on the way from HK, so I'll see how much that helps.