Raid,
And some old lenses are just stunning on my SL2. BTW the SL2 is mucho much better than the SL with MF lenses, mostly because of the updated way Leica made things better and easier.
My Noct-Nikkor was serviced and cleaned recently, and my 50 Lux-R "E60" was also serviced recently (by Leica N.J.). A good point was made above that the lenses are clean.
The Noct-Nikkor has a hand ground ASPH lens, but the rendering differs from a Noctilux F1.2 in that the sharpness falls off in the corners. The center is mucho sharp, and this is where this lens is optimized. The Noctilux differs in that it is sharper across the frame, but light falls off in the corners.
Anyways I love the rendering of the Noct-Nikkor more than any Noctilux. Also the 58mm reach makes it a better portrait lens. Because of F1.2 the OOF and bokeh resembles that of a longer lens, also it does the shallow DOF thing of a telephoto without being monster huge.
The 50 Lux-R "E60" I don't think is ASPH. It has an extra element over the version one, so my guess it is more highly corrected. This lens is not only rare, but also kinda has perfect rendering. One word to describe it is "Smooth."
Some old glass does crazy good on digital.
BTW since I have all the adapters, using the Noct-Nikkor on a Leica CL digital creates an 87mm F1.2. This is a mucho crazy portrait rig that is small. Just imagine using the sweet spot of a Noct-Nikkor eliminating the soft corners and basically only using the most perfect part of that lens. Then you have F1.2 for shallow DOF and smooth OOF.
The CL with Noct-Nikkor is a killer rig.
Know that the 50 Lux-R "E60" creates a 75 Lux on the CL. I owned a 75 Lux V2, and wide open the rendering was kinda "dreamy." The 50 Lx "E60" rendering is less dreamy meaning more perfect. The OOF and bokeh have that Noctilux smoothness and beauty.
So in my examples these old lenses that pre-date digital are suburb. These are two great example of old glass that is no compromise on digital.
Well the new L-glass is autofocus...
Cal