The Sigma 35mm F1.4 Art is a durable, compact and lightweight prime lens designed for Sony mirrorless cameras. Its wide-standard focal length and bright aperture make it perfect for a wedding, portrait and travel photography, as well as film making. It includes ultra-fast AF, a de-clickable and lockable aperture ring and a customisable AFL button so it's well-suited to video shooting as it is still photography. Exceptional optical performance The lens incorporates 15 elements in 11 groups. With two Special Low Dispersion (SLD) elements, an Extraordinary Low Dispersion (ELD) element, an F Low Dispersion (FLD) element and two aspherical elements, and as well as other high-performance glass, the lens advanced optical construction utilises SIGMAs state-of-the-art optical design technology. This minimises all types of aberration including axial chromatic aberration, which cannot be corrected in-camera. Fast and quiet AF The focusing mechanism in this lens features a stepping motor. This motor controls a focusing lens group composed of a single, lightweight element, which means AF is responsive and quiet, and is able to keep track of moving objects very effectively. Manual focusing is smooth and precise, but with the right amount of resistance for film-makers. High contrast results with minimal flare The lens performs very well in backlit conditions thanks to Sigmas anti-ghosting and anti-flare technology that it has cultivated through countless simulations and real-life testing. This keeps shots high contrast and free of excessive flare even when working in difficult light. Smooth, attractive bokeh Owing to its 11 rounded diaphragm blades, the lens displays smooth, round bokeh so that out-of-focus areas are not distracting. This makes the 35mm F1.4 DG DN Art particularly well-suited to portraits and close-ups, supported by its ultra-sharp image quality and minimal colour bleeding. Superb build quality The barrel of the 35mm F1.4 DG DN Art is made with a combination of aluminium and a polymer called Thermally Stable Composite, or TSC. This strong and light polymer has a very similar thermal expansion rate to aluminium, meaning that all parts of the barrel behave in a very similar way as the temperature changes. This ensures the best possible optical precision while keeping the weight of the lens to a minimum. Prefessional features The lens has an aperture ring that allows aperture to be controlled via the lens, or when set to Auto, using the camera. An aperture lock switch on the lens body allows the aperture ring to be locked in Auto so that its not accidentally knocked during shooting. A big plus for film-makers, the aperture ring can be de-clicked, allowing users to seamlessly adjust exposure. Also on the lens barrel is a focus mode switch and an AFL button, which can be customised to a desired function from within the camera menu (depending on the model). The switch is ergonomically positioned to be controlled by the thumb during use. Durable design The dust and splash proof structure provides sealing on buttons and along joins between constituent parts, and theres a rubber gasket around the mount. Theres also a water and oil repellent coating applied to the front element ensures that photographers can rely on it in any conditions. Included lens hood A petal type lens hood is included in the box, which helps reduce flare and offers the lens added protection if dropped. The hood has a lock mechanism that keeps it attached securely to the lens, and its rubberised grip makes it quick and easy to attach and remove. | Sigma Unisex 35mm f1.4 DG DN Art Lens - Sony E-mount in Black