I enjoy taking certain types of pictures with very thin DOF but also enjoy smooth out of focus areas. At the moment I am having great fun playing around with a Canon EOS 3 and 50mm f1.8 lens. I don't like too narrow a FL which is why I keep to 50mm. I was thinking of buying a Canon 50mm f1.2 lens, but as this is around £1100 I started to browse MF forums out of curiosity. It seems the Mamiya 7 series is very popular and 120 film is still easy to get and process, but the lenses don't see to go more open then f4.5 (which is f2.2 on 35mm equiv.) So it seems that I will not gain much in DOF by going to MF, in fact loose some DOF. I would welcome any interesting comments on this point.