The Rokinon 35mm F1.4 Full Frame Wide Angle Auto Focus Lens is the 4th in its series of auto focus full frame lenses (14mm F2.8 AF, 35mm F2.8 AF, 50mm F1.4 AF) specifically designed for Sony E mount cameras. Designed specifically for the unique rear element to sensor distance of Sony E mount cameras, and to deliver outstanding resolution, its optical configuration of 11 elements in 9 groups utilizes 2 Aspherical and 2 High-Refractive Index lens elements. Ultra Multi Coating is also used to minimize aberrations and unnecessary light dispersion. To enhance the exceptional optical technology of the ROKINON 35mm F1.4 AF, a new, quiet, fast, and precise IF (Internal Focusing) autofocus system is employed for superior focus detection that will capture any moment clearly. The bright F1.4 maximum aperture takes the stress out of working in difficult lighting conditions, and provides shallow depth of field for greater point of focus control, while the circular 9-blade diaphragm delivers pleasing bokeh at all settings. Additional features include a durable all metal housing with a user-friendly grip, a removable and reversible for storage lens hood, and full compatibility with APS-C Sony E-mount cameras, where it will provide an equivalent focal length of approximately 52mm for a ?normal? angle of view. The new ROKINON 35mm F1.4 AF Full Frame lens for Sony E is designed to appeal to enthusiasts and professionals who are ready to take the next step up in wide angle photography where outstanding image clarity, contrast, color fidelity, high corner to corner resolution are priority.