Miyazaki san of MS Optics fame has released his latest M-mount lens, the Elnomaxim 55mm F1.2.

Bellamy Hunt over at Japan Camera Hunter is still working to translate the details of the lens, but what is known at this point is that the lens uses a gauss type optical design with an extremely simple formula. Specifically, the lens is Miyazaki san’s take on the Zeiss 50mm F2 Sonnar lens originally designed for the Zeiss Contax I rangefinder.
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https://www.dpreview.com/news/0927176049/ms-optics-reveals-its-latest-lens-the-elnomaxim-55mm-f1-2-for-leica-m-mount-cameras