Meyer Optik Grlitz presents a new and improved version of the legendary lens - Biotar 58mm F1.5 II. Originally, the 58mm Biotar was designed by the brilliant optics, designer of Willi Mert-A. After launching in the mid -1930s, it was offered for about 25 years, which makes it the longest -selling lens in this series. The new version of Biotar 58mm retains the legendary imaging method with improved optical parameters. The lens generates a much sharper and more contrasting image compared to its predecessor. And the 14-year-old aperture has a huge impact on the magic created by the new optical instrument from Meyer Optik. Specification: focal length: 58 mm aperture: F1.5 - F.16 Angle of view: 44 mm Number of aperture leaves: 14 filter diameter: 52 mm minimum sharpening distance: 70 cm Weight: 405 g - 445 g Fastening: Pentax K