Hi Ardeshir, > But note that with most > lenses, the SLR user can also shoot with both eyes open. Only if you turn the camera sideways, or don't mind one eye staring into the back of the camera. The M has an offset viewfinder, that easily allows both eyes to be open in either camera position. I'm not saying this is an advantage or useful or not, just that I think what you said is not true. I have many SLRs, and none of them allow me to shoot with both eyes open...and I'm not sure what the lense has to do with this ability/inability. > And as for photography in low light conditions, isn't that a function=20 > of the lens, rather than of the camera? Canon has an f/1.0 lens > for its=20= > > SLRs, which is as wide open as anything in the Leitz range. The issue is the rangefinder is easier to focus than an SLR in low light. BTW, only on the SLR does it depend on the lense as to how much light you see in the viewfinder, the rangefinder does not change viewfinder illumination based on the lense, as it does not look through the lense. Regards, Austin > BTW: What about the f/1.0 Noctilux? How does it compare? To what?