This full-frame E mount FE 135mm f/1.8 GM lens from Sony is a telephoto prime characterized by its smart design. At f/1.8 maximum aperture, this lens excels in low-light conditions and also offers increased control over depth of field for working with selective focus techniques. The advanced optical design incorporates two extra-low dispersion elements, including one Super ED element, to reduce chromatic aberrations and one XA (extreme aspherical) element, which significantly controls spherical aberrations for a high degree of image sharpness and clarity. Additionally, a Nano AR coating has been applied to limit ghosting and lens flare for increased contrast and color fidelity when working in strong lighting conditions.
Complementing the optical assets, this lens is also notable for its inclusion of an 11-blade circular diaphragm to produce smooth, soft-edged bokeh with selective focus imagery. For controlling focus, an XD Linear Motor system is employed that is quick and quiet and also lends more responsive control for manual focus operation. The lens also sports a dust- and moisture-sealed design to support shooting in inclement conditions and dedicated focus hold buttons, AF/MF switch, and manual aperture ring lend further control while shooting.
- The physical aperture ring can be de-clicked for smooth, silent aperture switching to benefit video applications.
- The dust- and moisture-sealed design better permits working in inclement conditions and rubberized control rings benefit handling in colder temperatures.
- The Fluorine-coated front element resists dust, moisture, and fingerprints and is easy to clean.
- The rounded 11-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques.