What a minute, what kind of madness is this? You bought the body first and you don't have a lens? Leica lenses are WHY you shoot Leica in the first place, right? Shame on you! Go back to your corner and start saving up again! Don't mention it again until you have the right lens on that body. Had you done it the other way, say bought a Voightlander Bessa R4 or something and put a Leica M lens on it, then I can understand that. If you said you just bought a little Canonet instead while you saved up sounds even better. And regarding the 'large collection of Leica lenses', you're really limited by the frame lines in the camera right? So you'd only be getting maybe 3 or 4 (if you had that kind of cash) anyway. I'm not a Leica-hater, I shot a Leica M2 with a 35 Summicron for a few months back in the day and I just couldn't get the attraction. Shooting manual SLR's made more sense to me because I could literally use ALL of Nikon or Canons lenses with no problem or having to add anything to those cameras. I got a chance to play with an MP once and they're so lovely, it was like buttah, they are cool machines. Just a bit rich for my blood and not conducive to helping me solve photographic problems on a shoot. But I would get either the 50 Summilux, or the 35 Summilux if you had frame lines for those (you should). The 35 I lean to more because it's slightly wider. Now start saving!