L.2013.6.4 b: Long Distance, plate 2 from Revolving Doors

II. Long Distance: In the same way that the augmentation of the number of cylinders gives the motor a soft character, two eyes can unify between them what, to a single eye, would look like several fragments. Parting from an arbitrarily selected point as the source of these diverse notions, the two eyes tend to share the same point of view. The intervening atmosphere can be considered as agent of the achievement of monochrome.
Man Ray
New York, 1916–17