Meike Cinema Lens 12mm T2.2 for Micro Four Thirds  type_Digital Camera This Leitz SBOOI is possibly

This Leitz SBOOI is possibly the best looking 50mm viewfinder ever made (official Camera Traders opinion)

and the lens reaches infinity on two tested adapters

You are probably saying "Camera Traders description guy

which is lovely: this is a classic Zeiss design

so this one is more of a parts type lens

Meike Cinema Lens 12mm T2.2 for Micro Four Thirds &nbsptype_Digital Camera This Leitz SBOOI is possiblyThe Meike Cinema Lens 12mm T2. 2 is a compact, manual focus lens for Micro Four Thirds. You can use this lens for still photography, of course, but it's designed for video use, with geared focus and aperture controls and a heavier build. IN excellent condition, with clean glass and only minor cosmetic wear.