This versatile wide-angle lens is designed specifically for full-frame E-mount mirrorless digital cameras and can also be used on APS-C-sized E-mount cameras, where it will provide a 37.5mm equivalent focal length.Bright f/2 maximum aperture benefits working in low-light conditions and also offers control over the focus position when using selective focus or shallow depth of field techniques.Distagon optical concept incorporates 10 glass elements within 8 groups and also employs a floating elements design to reduce aberrations throughout the focusing range. Four of the elements feature a double-sided aspherical design, too, for consistent edge-to-edge sharpness and illumination, as well as reduced distortion.Zeiss T* anti-reflective coatings have been applied to each lens surface to help minimize reflections in order to provide greater image clarity, contrast and color fidelity.Integrated OLED display on the top of the lens shows the distance of the focal plane from the camera as well as the depth of field range for quickly recognizing the parameters of focus in use, even when working in low-light conditions.