Feeling the F0.95 ApertureThe TTArtisan M 50mm F0.95 Asph. has an optical structure of 11 elements in 8 groups, including 1 large sized aspherical element and 8 high refractive elements to ensure the image sharpness at wide open. As the largest aperture stop of full-frame photographic lenses. The filter thread of this lens is 62mm. With a size of 72 x 89mm, it only weights 687g. It is still a lens of exquisite size and moderate weight among F0.95 series.Super Large Aperture of F0.95, Killer in Low Light and DarkProviding precious light input, 50mm f0.95 lens allows you to have more creative leeway in dark and low-light condition.Shallow Depth of Field, Nice BokehA 14-blade diaphragm contributes to a smooth and pleasing bokeh quality.ed and Asph Glass, Sharp at Wide OpenTTArtisan M50/0.95 lens has an optical structure of 11 elements in 8 groups. One large-sized aspherical element and eight high refractive elements ensure the image sharpness at wide open.