Sigma - 17mm f/4 DG Contemporary Lens for L Mount, Silver - Silver

"Premium Compact Primes" for mirrorless usersThe Sigma I series features full-frame compatible lenses that offer new value to mirrorless systems. The combination of superb optical performance with a level of compactness that is perfectly suited to smaller and lighter modern mirrorless cameras will bring you new opportunities for a perfect shot. Sigma is aware that in today's world we have a wide range of camera choices, especially with the increase in mobile phone ownership.But with many people look for something more than a mere act of "taking pictures" when they choose to own a camera and lenses, I series lenses offer the ultimate combination of superb optical performance, outstanding usability and compact form-factor. Sigma's excellence in development and production technologies has been built up since our founding in 1961 and became increasingly sophisticated with the introduction of the Sigma Global Vision brand in 2012. With this as a base, Sigma has given careful thought to the quality of the products, the feeling of using it and the pleasure of owning it. This is how the I series was born.Beautiful details and bokeh for every sceneThe high resolving power of the 24mm F3.5 DG | Contemporary covers the entire image from the center to the edges, which means photographers can rely on edge-to-edge sharpness at all apertures when shooting wide-angle scenes. With a minimum focus distance of around 10cm and a maximum reproduction ratio of 1:2, it enables photographers to explore a subject more freely, from capturing distant landscapes to photographing close-ups of smaller objects.In addition to the attractive bokeh, it also gives photographers near-circular out-of-focus highlights, even at the edges of the frame. This helps create a close-up image of an in-focus subject with a blurred background, a technique that is very useful in a variety of settings.The lens features the latest optical design optimized for mirrorless systems. This includes high-precision, glass-molded aspherical elements created with advanced processing technology, and SLD glass and high refractive index glass elements. Together they make it possible to combine high optical performance with compactness. In addition, the smooth focus drive system designed around a quiet and fast stepping motor also makes the 24mm F3.5 DG | Contemporary a desirable choice for shooting video.Use of multiple high-precision aspherical glass molded lensesThe surface of molds for glass molding, which is a process that forms optical components by pressing glass materials at high temperatures, requires ultra-high precision. Sigma uses high-precision molds whose surfaces are controlled with an accuracy of +/-5 nanometers (0.000005 mm) or smaller. High precision aspherical glass molded lenses archives both good aberration correction and compact lens size.Exceptional I series build quality with a compact form-factorAll I series lenses have an all-metal construction. The precision-cut aluminum parts not only give the barrel a sleek, stylish finish, but provide superb durability, which improves the quality of the entire product. Metal materials are also used in internal structures that slide with the operation ring for added robustness. These high-precision components crafted with Sigma's cutting-edge metalworking technology are also used in Sigma's Cine Lens lineup for professional cinematographers and provides an exquisite feel to touch as well as sound effects, making photographers want to reach for it and play with it over and over again.With a pairing with the 45mm F2.8 DG | Contemporary in mind, the 24mm F3.5 DG | Contemporary is compatible with the same filter size of 55mm, with a matching outermost diameter and similar overall lengths. With a combined weight of only 440g / 15.5oz., these two lenses can be used in tandem as part of a high-spec and compact camera system that covers a wide range of shooting situations.Magnetic metal lens capI series lenses are accompanied by a dedicated magnetic metal lens cap, in addition to a normal plastic cap. This dedicated metal cap clips to the front surface of the lens magnetically. It is no exaggeration to say that this meticulously crafted cap represents the finishing touch for the I series.Magnetic metal lens cap holder (sold separately)When a cap is removed from the lens it should have a proper place where it can be kept.

I series "Premium Compact Primes" for mirrorless usersThe Sigma I series features full-frame compatible lenses that offer new value to mirrorless systems. The combination of superb optical performance with a level of compactness that is perfectly suited to smaller and lighter modern mirrorless cameras will bring you new opportunities for a perfect shot. Sigma is aware that in today's world we have a wide range of camera choices, especially with the increase in mobile phone ownership.But with many people look for something more than a mere act of "taking pictures" when they choose to own a camera and lenses, I series lenses offer the ultimate combination of superb optical performance, outstanding usability and compact form-factor. Sigma's excellence in development and production technologies has been built up since our founding in 1961 and became increasingly sophisticated with the introduction of the Sigma Global Vision brand in 2012. With this as a base, Sigma has given careful thought to the quality of the products, the feeling of using it and the pleasure of owning it. This is how the I series was born.New standards of optical performance for the Contemporary lineThe 35mm F2 DG | Contemporary brings to the table the highest level of optical performance at a maximum aperture of F2 with a lens body of a size that matches a mirrorless system.Axial chromatic aberration, a point of particular concern with a bright lens, is corrected with SLD glass, while an optimal placement of high-refractive index elements provides effective correction of various types of aberration while keeping the amount of glass used to a minimum. The use of three high-precision glass-molded aspherical lenses, which were made possible thanks to advanced production technology at the Aizu factory, Sigma's only production site. These elements provide correction of spherical aberration and field curvature, and the fluctuation of aberration at the time of focusing. The lens design also provides a very good correction of sagittal coma aberration, making it capable of capturing details fine enough for it to be used for night sky photography.Thanks to cutting edge optical design and advanced processing technology, the 35mm F2 DG | Contemporary offers consistent, high resolving power right across the frame.Use of multiple high-precision aspherical glass molded lensesThe surface of molds for glass molding, which is a process that forms optical components by pressing glass materials at high temperatures, requires ultra-high precision. Sigma uses high-precision molds whose surfaces are controlled with an accuracy of +/-5 nanometers (0.000005 mm) or smaller. High precision aspherical glass molded lenses archives both good aberration correction and compact lens size.Exceptional I series build quality with a compact form-factorAll I series lenses have an all-metal construction. The precision-cut aluminum parts not only give the barrel a sleek, stylish finish, but provide superb durability, which improves the quality of the entire product. Metal materials are also used in internal structures that slide with the operation ring for added robustness. These high-precision components crafted with Sigma's cutting-edge metalworking technology are also used in Sigma's Cine Lens lineup for professional cinematographers and provides an exquisite feel to touch as well as sound effects, making photographers want to reach for it and play with it over and over again.The cover ring between the focus ring and the aperture ring has hairline processing that is also used for the rear cylinder of the Art line. This covering functions as a finger hold when attaching or detaching the lens.Magnetic metal lens capI series lenses are accompanied by a dedicated magnetic metal lens cap, in addition to a normal plastic cap. This dedicated metal cap clips to the front surface of the lens magnetically. It is no exaggeration to say that this meticulously crafted cap represents the finishing touch for the I series.Magnetic metal lens cap holder (sold separately)When a cap is removed from the lens it should have a proper place where it can be kept. Using this as a starting point, the CH-11 cap holder using the magnetic force of the dedicated cap was created. With the cap attached to the ring plate, and the plate clipped to a bag or belt, the cap is always within easy reach and is less likely to get lost. Plus, its elegant design is a stylish addition to a photographer's equipment.

105.6 Degree Ultra-Wide ViewA wider vision reveals richer detail, making it ideal for landscapes, architecture, and immersive storytelling.F1.8 Large ApertureThe bright F1.8 aperture excels in low-light conditions, delivering cleaner images with rich detail.True-to-Life ViewOutstanding distortion control ensures every line and shape is rendered faithfully.Rapid and Responsive FocusPowered by STM motor, it captures every vital moment with fast and accurate autofocus performance.Advanced Optical DesignEquipped with 4 ED and 3 aspherical elements in a 15/12 structure for sharp image details.Durable Weather-Sealed BodyHigh-grade weather sealing and comprehensive physical control buttons for confident, intuitive control in any environment.Ultra-Wide Vision. Uncompromised Precision.105.6 Degree Ultra-Wide ViewWith a groundbreaking 16mm ultra-wide perspective, the AF 16mm F1.8 L expands your field of view to 105.6 Degree , capturing sweeping landscapes, bold architecture, and immersive scenes with exceptional clarity and depth.Powerful Autofocus PerformanceViltrox's STM stepping motor autofocus provides pinpoint precision and strong tracking power. With eye and face detection, it enables faster, more efficient, and stable autofocus for every shot.Controlled Depth in Ultra-WideEven with its ultra-wide angle, the F1.8 large aperture achieves an impressively shallow depth of field, delivering stunningly beautiful bokeh that enhances artistic perspective and spatial compression. Sharp focus on the subject, creamy smooth background, and seamless transitions throughout.Precision Built for High Resolution: 15 Elements in 12 Groups. One Unified Vision.F1.8 Bright and Wide: Open BrillianceThe F1.8 aperture breaks free from lighting constraints, efficiently capturing more light even in low-light conditions. This enables faster shutter speeds and lower ISO settings, delivering higher-quality images with greater clarity and less noise.Advanced Optical Construction: Precision Optics. Pure Clarity.Built around a refined 15-element, 12-group design, the AF 16mm F1.8 L delivers ultra-high resolution and exceptional resolving power that raise image quality to a new benchmark, providing outstanding clarity, contrast, and fidelity from center to edge. Three precision aspherical elements maintain a lightweight structure while ensuring superior distortion control and accurate geometry, while four ED elements effectively suppress chromatic aberration and color fringing for natural, true-to-life color reproduction throughout the frame.The Ultimate Lens for Astrophotography and Landscape: Detail, UnfilteredA built-in lens information display provides real-time shooting data for precise control in low-light environments, while full-frame high-definition imaging delivers exceptional clarity and tonal fidelity across the frame. Three precision aspherical elements accurately render pinpoint stars and effectively suppress coma aberration for cleaner night skies. A practical non-bulb front design with a 77mm filter thread supports CPL/ND filters, complemented by advanced dust sealing and customizable buttons that streamline landscape and astrophotography workflows.Efficient Control for Professional ExperienceThe AF 16mm F1.8 is equipped with a comprehensive professional control system, enabling photographers to adjust settings more efficiently and unlock creative possibilities.AF/MF SwitchSeamlessly switch between autofocus and manual focus modes to adapt to different shooting requirements.CLICK SwitchEasily switch between stepped and stepless aperture adjustments for the ultimate creative flexibility.Fn1 ButtonCustomizable function key for instant access to your preferred setting.Fn2 ButtonEasily switch between preset A and B focus points with a single pressOutstanding Close-Up PerformanceWith a minimum focusing distance of 0.27m and 0.1 x magnification, the AF 16mm F1.8 L enables compelling close-range perspectives while maintaining sharp detail and natural depth across the frame.Outstanding Video PerformanceDesigned for modern hybrid creators, the AF 16mm F1.8 L delivers fluid visual expression with precise control and minimal focus breathing.Robust Build for Real-World ShootingHigh-grade internal dust sealing enhances reliability in challenging outdoor conditions, and its lightweight 550g full-metal construction delivers a balanced blend of durability, stability, and portability for long shooting sessions.