Difficulty getting AF in both eyes simultaneously

Is this just a practice thing, or is it likely a sign of incorrect diopter difference between the lenses?

Specifically, the eye with the lower power has a more difficult time achieving AF. And when it does, the quality isn’t as good.

I’ve been coercing it to happen in the left eye more often lately. But often it’s only happening in both eyes for a short period, even if coerced. It just switches back and forth mostly.

So, lens power issue or practice issue?

Hello Jim,

You could read the articles about the dominant eye on the EM site. For me the dominant eye does AF easier. Without AF the sight in both eyes should be about equal if the lenses are well balanced. Also it helps me to be aware of the depth in the vision because it stimulates both eyes to work together.