F hotkey
 

having problem with the "f" key it used to zoom in (nice) but now it zooms out so far cant see a thing. dont thing i did anything maybe fatfinger the keyboard?

You might have something hidden in the scene. "f" focuses on a selected object or the entire scene if nothing is selected.

i thought F was focus on the selected object
and A was focus on all

yes should have item selected to use f ,but sometimes when working on a scene, one forgets, then panel zooms way out, have hard time bring it back .