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Sigma has developed the first full-frame zoom lens with F1.8 maximum aperture, featuring an inner zoom mechanism, minimum focusing distance of 30cm, and a φ82mm filter size. Weighing less than 1kg, it is portable for hand-held shooting or gimbal use.
The maximum F1.8 aperture allows full-frame users to shoot hand-held in low light and achieve beautiful bokeh, combining the flexibility of a zoom with optical design expertise and advanced production technology.
The inner zoom mechanism keeps the lens length constant across focal lengths, making it stable for tripod or gimbal use and resistant to dust and water.
Minimum focusing distance of 30cm across the zoom range with maximum magnification of 1:4 at telephoto provides excellent close-up capability without affecting sharpness.
The lens maintains rigidity and durability while weighing under 1kg, with a versatile 82mm filter size for portability and convenience.
Optical aberrations are corrected throughout the zoom range, offering clarity comparable to prime lenses, with advanced coatings reducing flare and suppressing focus breathing.
Five SLD and three aspherical elements correct aberrations, suppress axial chromatic aberration, and deliver sharp details with smooth bokeh.
Focus breathing is minimized, enabling natural focus pulls for video and consistent composition during focus changes.
Advanced simulation technology and Nano Porous Coating with Super Multi-Layer Coating reduce flare and ghosting, ensuring high-contrast, clear images in all lighting conditions.
Features include high-speed adaptable AF, weather-resistant structure, de-clickable aperture ring, smooth manual focus, and on-barrel AFL buttons for versatile photographic use.
The HLA (High-response Linear Actuator) enables rapid, precise, and near-silent autofocus for both stills and video recording.
The by-wire focus ring offers optimum torque, high resolution, and adjustable rotation between 90°–720° for smooth, accurate manual focus for photographers and filmmakers.