TTARTISAN was etablished in 2019,located in Shenzhen. As a young but with rich experience company, TTARTISAN devotes itself to lens manufacturing, R&D and sales."TTARTISAN / Mingjiang Optics" is divided into three series: Range-finder lenses, Mirrorless lenses and AF lenses.The rangefinder lens series are for Leica users. With premium optical design, high quality materials (ED/ASPH Glass), and perfect industrial support in Shenzhen, this series has been highly praised by the Le