These photos were taken with a Leica M Monochrom camera with a 50mm f/1.4 Summilux-M lens and a medium yellow filter. It is a true black & white digital camera- the images are not converted from color to b&w in post-processing. It is great for street photography with its dramatic effect.
It’s also a fun, sort of retro challenge to shoot with a fixed length lens and manual focus. However, I did use aperture-priority for exposure instead of manually setting it.