Gee, I hope I haven't hijacked this thread or at least adding interest to it...

I'm about to inherit a 1970's Konica C EF rangefinder which will be a good little introduction I guess.

So, please correct me if I am wrong, are the quality of lenses often better/sharper/faster for rangefinders than many SLR lenses (I shoot with a Nikon F90X and have the Nikon 50mm 1.4 and 85mm 1.8 lenses that I use most the time)?
I hope this question doesn't sound like I'm an absolute 'dill' - I do my best not to be :P