Hyperfocal distance has its time and place, its appropriate when you have near and far subject matter that you want similarly resolved with detail and sharpness.





Focusing at infinity is inefficient in that it wastes the depth of field behind infinity focus point. if the subject matter you care about is only very far away, then yes it makes sense. focusing at infinity has some leeway built into it so its never extremely accurate. however using live view and what not will obviously help.


I'm not really sure why someone would want to just walk around and not even look through their camera, focusing doesnt' take very long so why not try to be more efficient? If you're trying to save effort than I suppose to some that would be easier to them.


its inefficient to focus at infinity if you care about near and far ground subject matter, focusing at infinity and dropping aperture causes longer shutter speeds and exposure times, and introduces diffraction.