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 … Continue reading New MS-Optics Historica Prot 40mm f/6.3 lens for Leica M-mount