Today I tested a Leica lens from the 80s with my Leica M10-P - The Leica Summilux-R 50mm f 1.4 with a corresponding R to M adapter. Since the lens is not coded and the inexpensive adapter does not allow focusing through the rangefinder, correct focusing is only possible using focus peaking via Live View. This is of course cumbersome and sometimes almost impossible in sunshine. Nevertheless, I still find the result amazing from a lens that is over 40 years old. The current Summilux M-Version would certainly give better results here in terms of sharpness and micro-contrast, but is a bit more expensive...USD 5000. I paid only USD 800 for mine.

Photographer: Roland Steffen - Gear: LEICA M10-P. Pictures not to be used without my explicit permission.