The TTArtisan M50/0.95 has an optical structure of 10 elements in 8 groups, including 1 large-sized aspherical element and 5 high refractive elements to ensure the image sharpness at wide open aperture. As the largest aperture stop of full-frame photographic lenses, F0.95 perfectly explains the meaning of creamy bokeh and the maximum light it can capture in low light conditions. The filter thread of this lens is 67mm. With a size of 74mm*72mm, it only weights 673g. It is still a lens of exquisite size and moderate weight among F0.95 series.