The 7artisans 75mm F1.25 lens features 7 elements in 6 groups and is based on the Sonnar formula. With an optimized modern algorithm and polished technology, 7Artisans can guarantee high precision of large format glass during production. 7Artisans uses many brass structural components for the lens to combine size and solidity. Weighing 600 g, it allows for comfortable rotation of the focus ring. The specially compressed bokeh of 75mm is more dramatic than that of 35mm and 50mm. This lens also enables portrait photography under various lighting conditions with a very wide aperture.