The portraits were captured inside a wet market using an old Leica Summicron 50mm lens mounted on my M9P. I believe the one I have was produced in 1970's. I shot with wide open aperture due to limited light source indoor. I am impressed with the sharpness, contrast and color of this old lens.
One of the fun part using Leica M series is you can choose from a wide range of Leica lens from the 50's until the latest version. Each series of lens will give its unique characteristic and you would not be disappointed by the superb optic and workmanship.