Review on 7artisans 50mm F1.1 Lens for Leica M-Mount Cameras: M-M, M240, M3, M6, M7, M8, M9, M9p, M10 - Customized Version (Black) by Trisha Green

With all due respect, I cannot agree with the previous assessment. My lens is optically as good as the Noctilux 1/50 I own and I've extensively tested both lenses against each other with the M10 body. Chromatic aberration is MUCH LESS than Noctilux. The glow is more pronounced, more like Leica Summilux 1.4/35 Pre-ASPH. At f/2.8, the glow largely disappears. This lens requires manual adjustment and tools are provided. It doesn't focus out of the box because the rangefinder coupler isn't aligned. It literally took me 5 minutes to set it up perfectly