I already reported that Yongnuo will start producing cheap prime lenses for Nikon F mount (the Yongnuo 50mm f/1.8 version for Canon costs $58). The first Yongnuo AF-S 50mm f/1.8 lens for Nikon was on display at the Photo & Imaging 2015 exhibition in Shanghai and has all-metal construction, AF-S focus motor and closest focusing distance of 0.45m. Here are some pictures of the new lens:
Via Sina