<p>Sanford,<br>
I have to agree about AF on the D300. I don't recall any time that it didn't hit focus, no matter the lens used. AF is the only reason that I still have a (rather small these days) Nikon kit.<br>
That said, I don't think that I've ever lost a shot due to the rather sluggish focusing on the X-E1. Maybe it's just the type of photography that I do with it. When I know I'll be shooting my grandkids, I just grab the Nikon. Just a matter of picking the right tool.<br>
I haven't had the opportunity to really work with an X-T1 yet, but if it can come close to the D300 in the AF department, my Nikon kit goes up for sale.</p>