The .58 viewfinder is pretty well a specialist wide angle camera, not much good for anything else because focusing accuracy is diminished on the very lenses that need accuracy, 50mm and above. It gets worse if you use fast wide apertures in low light. The lure of a great big image of the world soon wears off if you have a regular .72 camera as well. The .58's are less popular for good reason's, and not because wide angle lenses aren't used much on Leica's.

Steve