DavidBM wrote:
GMPhotography wrote
My next lens ZM 50 1.5 or a VC Nokton 1.5.
Don't know which one maybe better Since you already have a 50 that's close to technical perfection, the question is what are you buying it for? If you want a fast but small 50 for general use that's got a good sharp central area at wide apertures and is super portable then maybe you want the CV (though personally for that brief I'd get a Loxia and put up with it being a little slower)
No doubt the Loxia 50 is an excellent lens. I own one and like it very much. But the CV Nokton is just a bit better in a number of ways (faster, sharper, nicer bokeh), and it is definitely usable at f1.5. The Loxia has slightly more native pop due to its higher intrinsic contrast, but the Nokton can be just as 3D with a little work in PP. It has become my lens of choice for 50mm. One thing that I really love about the Nokton's rendering is that highlights sometimes have a very subtle glow that can be magical, as in the portrait that I posted above.
I have no experience with the ZM 50/1.5 or the C-Sonnar and cannot comment on their performance (although I am not wild about the wide open bokeh in a couple of Gregg's images.) No doubt they are very fine lenses as well.
Rob