This 90mm f/1.25 Lens for Sony E-Mount Cameras from TTArtisan is a manual focus lens with a fast, bright f/1.25 maximum aperture that is well-suited to portraiture and low-light situations. The wide maximum aperture affords notable control over depth of field for selective focus shooting, offering smooth transition between the focus object and the surrounding image area. The fast lens combined with the 10-blade aperture bokeh creates a dreamy image and fascinating background blur. The optical design is made up of 11 elements in 7 groups, and features four sets of achromatic element doublets, which significantly improves chromatic aberration and resolution performance for excellent image quality.