Just to add some interest, rather than to answer the question directly, I thought I'd offer a poem written by Pope Leo XIII called Ars Photographica (On the Art of Photography) when he was still Cardinal Pecci in Perugia in 1867:
Ars Photographica
Expressa solis spiculo
Nitens imago, quam bene
Frontis decus, vim luminum
Refers, et oris gratiam.
O mira virtus ingeni
Novumque monstrum! Imaginem
Naturae Apelles aemulus
Non pulchriorem pingeret.
(Sun-wrought with magic of the skies
The image fair before me lies:
Deep-vaulted brain and sparkling eyes
And lip's fine chiselling.
O miracle of human thought,
O art with newest marvels fraught -
Apelles, Nature's rival, wrought
No fairer imaging!)