Is my camera consistent over time?
I took pictures in burst mode (quick succession) of a fountain shot by Eugène Atget in 1900.
Fountain, rue Garancière, Paris, 1900, Eugène Atget Musée Carnavalet: Histoire de Paris, CC0 Paris Musées
I superimposed two of these photos taken on March 7, 2019 at 18h 38min 0s and calculated their difference on the computer. The visualization of the difference between two photos that should have been identical, instead of being black, still shows the image of the fountain.
1 .jpg file of 29MB, 2832x4240 pixels, 24x36 cm inkjet print.