Amazon.com : TTArtisan 50mm F0.95 Large Aperture Full Frame Manual Focus Lens Titanium Grey for Sony E Camera with Leica M to Sony E Lens Adapter for Sony A7 A7II A7III A7R
Leica M10-R vs Sony A7RIII with Summilux 50/1.4 (vs Sony 50/1.2 GM) - using Leica lens with Sony - YouTube