I guess my question is what makes the noct nikkor so special? i can understand why it is more expensive than the 50mm f1.4, for sure, but what I did not understand is why is it so much more expensive than the 50mm f1.2. I haven't dug into this too much because I figured some Nikon aficionado would chime in.
From ebay, the cheapest 58mm f1.2 lens sold for $2,500 compared to the $329 for the 50mm f1.2 version. The value is rising or has risen too, I think. It seems that the 58mm version is aspherical and the 50mm version is not. I thoguht aspherical designs is somewhat normal these days for fast glass.
Post #4 has a link to KR's write up pretty much 'splain' the why's & wherefores.