Chinese lens manufacturer Zhong Yi Optics has just released its fourth cinema lens: the Mitakon Speedmaster 50mm T/1.0 Cine Lens, designed to be part of a lineup of Micro Four Thirds cine lenses. The Mitakon Speedmaster 50mm T1 MFT joins the existing 17mm T1, 25mm T1, and 35mm T1 to provide a 100mm equivalent focal length.

The Speedmaster 50mm T1 MFT lens comprises nine elements arranged in six groups. One Ultra-High dispersion element, one Extra-Low dispersion element, and five high refraction/low dispersion elements are inside. An attractive bokeh should be possible with the 9-blade aperture. The lens features a front filter diameter of 77mm and an outside diameter of 80mm for clamp-on matte boxes. The minimum focusing distance is 60 cm (23.6 inches). According to Zhong Yi, focus breathing is carefully regulated, so the magnification changes very little as the focus is moved from the closest to the farthest focus distances.

Metal makes up the Mitakon Speedmaster 50mm T1 MFT, a small and light cinema lens. The set’s heaviest lens, weighing in at 1.59 lbs/720 g, is this one. The 50mm is also slightly longer than the other lenses, measuring 10.2cm instead of 9.9cm for the 17/25/35mm. All four lenses have their aperture and focus gears in the same location. The focus throw of the Mitakon Speedmaster 50mm T1 MFT is 165°.