A simple addition to get better shots.
Focus bracketing
Most if not all camera displays are not large or good enough to show exactly how a picture is exposed when viewed. Most if not all more advanced cameras have a function called ”focus bracketing”, which simply allows you to bracket focus. That is, they take an extra shot or two at different exposures when you press the trigger.
Much like under- or overexposing can wreck an otherwise good image, so can getting the focus wrong. I suggest that camera makers start allowing for bracketing of focus as well, where the camera would take an extra image or two, moving the focus point a few steps back and/or a few steps forward automatically in additional images.
The above simple wireframe shows how I would want to configure focus bracketing in camera (left) and on the computer if hooked up to one (right). In other cases, compensating for focus abnormalities are done in percent, and so should be done here to. However, while shooting it could also be good to know what those values mean in actual distance. Both with current focus point, as well as other distances, and for depth of field; both with current aperture as well as other apertures.