Mr. Miyazaki has a new MS-Optics Historica Prot 40mm f/6.3 lens for Leica M-mount that is based on a historical lens design known as the Protaria lens formula. This lens has 4 elements in 2 groups and weights only 47 grams. The minimum focusing distance is 60cm. The price of the lens is around $700 and you can get one from Bay.
Aditional pictures from the eBay listing:
Here are a few sample photos (more to come):
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