I used a nikon 8008s with 3 lenses for about 5 years. I then upgraded to a Leica M6 with 28mm elmarit-M. When I got my first roll of slides back from the Leica I was beyond floored. I'm not sure how people can say the optics are the same. My nikon slides in comparison to the Leica slides were absolutely flat and dreary. The leica images look 3D as if they are jumping out of the emulsion. Amazing clarity and contrast. I no longer have the M6 because I've gone up to 645 and 8x10, but if I were going with a serious 35mm setup it would be hard to use anything other than a Leica after owning one. The Leica's are pricey though, the main drawback..