"A half-frame camera is a semi-obsolete device (made mostly in the 1960s & 1970s) that advances each shot only half of the distance that a normal format camera would. The result allows for two shots per frame instead of one and presto-change-o! - a 36 exposure roll of film instantly becomes 72 exposure roll. The true beauty of half-frame photography lies in the phenomenon of the ‘happy accident,’ the serendipitous effect of two random images being placed next to one another on a single print."
I've seen lots of Andrew's photographs in person and they're truly serene and lovely. You can get yourself, or your bff (cause everybody loves a calender) a copy of Andrew's calendar here.