Distortion measures at -1.32% barrel, a good result for a 35mm lens. Further correction can be undertaken in software if required, although this is unlikely to be needed in most images.
TTArtisan has announced the AF 35mm F1.8 Ⅱ, a second-generation version ... it's also now available for Nikon Z mount as well as Sony E mount and Fujifilm X mount. The lens is 49mm (1.9 ...