Alnitak
Established
So, instead of comparing the Nokton with the Noctilux, one should consider comparing it with the Summilux : great results at F1.4 at 1/4 of the cost of a summilux. As for the weight and size : 100 grams extra and similar length so also this is not a big deal for me.
For you perhaps, but logically the old f/1 Noctilux is the better comparison. The two are remarkably similar optically and in size and weight, and pure optical performance is nearly indistinguishable (well, except for the uncomfortable fact for the Leicaphiles that the Nokton is actually sharper wide open in the center). That 100g is a huge difference. The Summilux is a totally different beast--beautiful, stunningly sharp and very small and light for the performance. Probably the best overall lens I have ever used on any platform, period.
Jeff