I am looking for a word or expression, that describes the specific distance in the space that lets the observer appreciate and completely understand the object of observation.
For example, when one is in a museum and stands too close to an impressionist painting, one can only see the brush strokes but not the flowers. But if one stands at the right distance, one can easily recognise the flowers and the whole garden.
Is there an expression that describes the right distance to appreciate fully a given object?
Thank you very much! anak