On my London visit, I used a Nikon D40 with a Nikon 35mm lens. This was great fun, and the camera and lens combination seem to be pin sharp (unlike problems I have with my D7000). I was generally shooting at around F8 on Aperture mode. Quality wise it did not let me down, and the camera and lens are a handy size. While the 35mm is too short for many things, the real problem I had, was that quite often it wasn’t wide enough for what I was doing. I think this is really down to the crop factor on the D40. Still you learn to adapt, which is what it is all about.