Everything on this bench is drawn to scale. Slide the zoom to set how wide the field is, from 4 millimeters down to 60 nanometers. Then pick the instrument you are looking through. Each one has a resolution limit, so things smaller than that limit turn into a blur or vanish.
Reading the field. The gold ruler under the circle is a scale bar. Objects too small for the chosen instrument are drawn as soft smudges, which is what a real blurred image looks like.