All-In-One Zoom for Any Situation. A tremendously versatile zoom, the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary Lens is a groundbreaking all-in-one zoom lens designed for APS-C mirrorless cameras. Covering wide to super-telephoto in a portable package, this ultimate travel lens further impresses with quick AF, powerful OS, and surprising macro capabilities to suit a wide variety of shooting needs. — Wide-Angle, Super-Telephoto, and Macro. Offering an amazing 18.8x zoom, this 16-300mm offers a 24-450mm-equivalent focal length range for APS-C cameras, making it the perfect all-in-one zoom to handle virtually any shooting situation. At the wide end, the lens suits architecture, interiors, and landscape subjects; at the long end, it’s capable of photographing distant action and wildlife; and throughout the middle, the lens suits everything from portraits to close-up subjects to street scenes and more. — High-Speed Autofocus and Powerful Optical Stabilization. Combining quick and accurate focusing performance with robust image stabilization, this all-in-one zoom is poised to handle virtually any subject or situation: – HLA (High-response Linear Actuator) quickly and accurately moves the focusing group for fast focus switching and nimble tracking of fast-moving subjects. – Matching the focal length versatility, this lens also offers a 1:2 maximum magnification ratio at the 70mm position for close-up shooting. At the wide end of the lens, the magnification is 1:3 and it is 1:4 at the telephoto end. Helping to achieve sharp and stable images, this zoom features a powerful image stabilization system that compensates for 6 stops of camera shake at the 16mm position and 4.5 stops of shake. Powered by Sigma’s OS2 algorithm—the same used in Sigma’s larger super-telephoto lenses—this stabilization system suits the versatility of the lens itself and helps reduce camera shake and blur for handheld reliability, even when shooting in low-light and at the long end of the zoom range. — Impressive Optical Quality: Including a series of low dispersion glass elements and four aspherical elements, the lens has impressive aberration correction, high sharpness and clarity, and accurate color rendering throughout the zoom and focus ranges. The optical design has also been tested and adjusted to resist flare and minimize ghosting in a variety of lighting conditions. Focus breathing is also well-controlled to benefit filmmaking applications and photographers working with multi-shot composite processes. — Compact, Lightweight, and Durable: Despite the massive zoom range, the lens remains relatively compact and lightweight to serves as an ideal travel lens: it measures 4.8″ long and weighs 1.4 lb. Dust- and splash-resistant seals for reliability in inclement weather conditions. The front element features a water- and oil-repellant coating that is especially easy to clean. This L-Mount version of the lens is also compatible with the optional UD-11 USB Dock for updating the lens’s firmware and making settings adjustments. Zoom lock switch at the wide end prevents the lens from extending when stored.