As Long As It Photographs / It Must Be A Camera. By Taiyo Onorato & Nico Krebs. Tonk, 2011. 60 pp., illustrated throughout, 29,7x42cm (two books). Images from here.
I have a really serious soft-spot for handmade/self-made cameras, I'm really endlessly fascinated by them, so the "pure apparatus" part of this project was always going to be pretty great to me.
On top of this however, 'As Long As It Photographs / It Must Be A Camera', also features some really interesting and beautiful photographs.
"Synopsis: A pair of books by the Swiss photography duo Tonk (Taiyo Onorato and Nico Krebs).
The first book, 'As Long As It Photographs', focuses on the camera as pure apparatus featured in a variety of hands and media.
The second, 'It Must Be a Camera', features subjects united by a (sometimes literal) thematic frame."