Les Brown wrote:
This may be an old topic, but I just assigned my d7200 AE-L, AF-L button to autofocus. Just wondering who uses back button focus and who doesn't, and is it a good option. Everything on the Web seems to say it is wonderful. If so, why did Nikon not just build it in?
I Use it and love it. But some people don't like it, and that may be why it's not the standard. Hopefully some here can explain why they don't like it. The only negatives I can see are that button placement and it's physical use may be a little awkward for some people; also some might prefer the original assignment of the button.
Edit: As far as the advantages of back button focus are concerned, you need to look no further than Steve Perry's Backcountry Gallery -