Question about the grid thing vs. Aperture. I get how Aperture works in a basic sense. Low Aperture, more DOF, use a single small green square on subject (from the grid). High Aperture, less DOF, use all green squares (from the grid). What happens if I have my lens at the lowest aperture and I make the grid thing all highlighted? Will it just have high DOF and just automatically focus on an object? Or will it be more landscapy? I kinda don't get how that square green grid thing works. Thanks!