Now that my Ebay purchased M4-P is on its way to me, I'm in the market for a lens. I've been doing my homework, as any good school teacher should, and the 35mm is the optimum focal length for me. But which lens should I choose? The Summicron M f/2 would be perhaps my first choice, but on a teacher's salary I'd be shopping in the used market. This would certainly put the current Summicron ASPH out of reach, and as far as a Summilux f/1.4 goes...I'd only be dreaming. The Zeiss Biogon f/2 looks like a viable alternative, and its less than thousand dollar price tag makes it attractive. But as an eight element lens I've read that it's large and heavy. Is this so? My other interest, the Voightlander Nokton F/1.4 is certainly within the budget, and it's small size is very attractive. And as with the Biogon, I wouldn't be purchasing used glass, which is a great plus to me. Though I have also read that as a 'cheaper alternative' lens that it simply doesn't have the flair correction or the solid feel of a Leitz-quality lens. I've read the came comment about the Biogon. I'm an exclusive, natural light, black & white print photographer. I love low-light conditions, and I'm photographing people on the fly. With my new, twenty-five year old camera I'm certainly not adverse to purchasing used equipment; but there's an obvious plus to purchasing new lens. Fifteen-hundred bucks for a great piece of glass--what a way to phrase it--is not out of the question for me. What to do, wizened heads?