How to get to full screen from Browser View?

Thanks for the replies. Perhaps I should be more specific: I want a single image to be full screen. When I'm in the Browser mode with several images displayed and hit either f or the "full screen" on the tool bar, I simply get a slightly enlarged browser with a black background showing the same multiple images (essentially just eliminating the inspector on the side and the toolbar). On the other hand, if I'm in Split View or Viewer mode, the f key works fine.

This was the same when I was in the Apple Store yesterday and my "consultant" was somewhat surprised as well. Any further explanation? This is different from my previous version and while not "bad", it is an extra click in my workflow.

Thanks!

Phil

Got it. Thank you!