This isnt a great photo on my part but I thought I'd show it just for others interest.
This guy takes photos of the tourists outside Capital Building for 1 Peso a shot (about 80p/$1.10). As you can see by the scan, his camera is held together by bits of Gaffa tape and is nearly ready to fall to bits but still functions. His great 'act' starts when he takes off the lens cap, performs his magic and 10 minutes later hands you a paper negative a 6x6 print.
The only thing I didnt understand was that I only ever saw him put two trays of chemicals (not three) inside his camera to process the images?
I let the tour bus go on without me and stayed behind to watch this guy perform. One of the highlights of my stay in Havana....and the Rum :)