Full-frame Lens: Standard length lens designed for full-frame Sony E-mount cameras that can also be used with APS-C models where it provides a 75mm equivalent focal length. | Bright Aperture: The bright f/1.4 aperture is designed to suit work in a variety of lighting conditions and also for controlling depth of field and isolating subject matter. 12-blade diaphragm creates smooth and circular bokeh as well as specular highlights when stopped-down and photographing point light sources. | Optical Design: This lens has an optical design of 7 Elements in 6 Groups that with high refractive index glass elements help to control distortion and spherical aberrations for improved sharpness and accurate rendering. | Manual Focus: Manual focusing design and a minimum focusing distance of 50cm suits working with close-up subjects. The clicked aperture ring is stepped with the right amount of resistance and click, marking full stops from F/2.8 to F/16. | Video-Specific Optimization: For more convenient and professional video shooting, the lens has been specially optimized - the focus ring and aperture ring are designed to fit most focus followers in accordance with the cine lens. | Partial Focus Function: When taking pictures, we often encounter the need to only make some areas clear and other areas blurred. But using a tilt lens can meet this need without changing the aperture, and making photos more artistic.