This lens has been released now, you can view more details HERE.
7Artisans will soon release their first autofocus lens, a 50mm f1.8 for Sony and Nikon cameras. The lens is equipped with an aperture ring, a focus ring and an AF/MF switching lever. And the price is $228 USD.
The 7Artisans AF 50mm f/1.8 uses a 62mm filter mount, has an optical structure of 11 elements in 9 groups, F1.8 aperture, 50mm focal length, 11 aperture blades, a focus range of 0.5m-∞, a 62mm filter mount, and a lens body size of 72*104mm. Weighs about 421g.
At the same time, this lens is also equipped with an STM stepper motor and an all-metal lens body, which claims that there is no need to worry about focusing problems. The lens also supports face/eye recognition function, which can use the human face or human eyes as the subject and automatically set the accurate focus point and exposure.