"I prepare each tintype plate by hand and make a single exposure of each person (occasionally two, if I make a mistake). The tintype is processed immediately so the subject can walk out the door with it about 15 minutes later", he writes on his Béhance page. To me it is something about the eyes, they seem so real! (And how many times have I written "tintype" now?!)
More of Michael Shindler's work here!