Sigma 17-70mm f2.8-4 DC Macro HSM Lens - Pentax Fit:
Sigma 17-70mm f2.8-4 DC. Macro HSM Lens is a durable lens for Pentax which is designed specially for DSLRs with APS-C sized image sensors. The Sigma 17-70mm Macro lens is an impressive addition to the Sigma Global Vision Contemporary line. This lens has a 35mm-equivalent focal length range of 25.5-105mm, providing wide-angle to portrait-length angles of view for use in everyday shooting situations. This lens features a fast f/2.8-4 maximum aperture to help better control your focus plane and to aid in low-light shooting. An enhanced optical stabilizer compensates for camera shake, while an optimized hyper sonic motor ensures quiet, smooth and fast autofocusing that greatly benefits video applications. It features two FLD glass elements, one SLD (Super Low Dispersion) glass element, and three aspherical glass elements, including a double-sided aspherical lens are integrated into the lens' construction to help improve overall image quality. This lens features a maximum magnification of 1:2.8 and a minimum focus distance of 8.7"/22cm, giving a working distance of just 2.2"/5.5cm when shooting at the 70mm focal length. By utilizing an optimized distribution of optical and electronic elements, the size of the lens barrel is able to be reduced in size by approximately 30%. A Super Multi-Layer Coating is also applied to lens surfaces to reduce the appearance of lens flare and ghosting, which helps to maintain image contrast and color fidelity when working in strong lighting conditions. A large maximum aperture of f/2.8-4 helps with low-light photography and also offers greater control over your focus plane for selective focus shooting. A brass bayonet mount provides reinforced durability at the connection point between the lens and your camera.
Sigma 17-70mm f2.8-4 DC Macro HSM Lens - Pentax Fit Features - Sigma 17-70mm f2.8-4 DC Macro HSM Lens - Pentax Fit
Large maximum aperture of f/2.8-4 helps with low-light photography.
Offers greater control over your focus plane for selective focus shooting.
HSM provides fast, quiet, and smooth auto focusing.
Super Multi-Layer Coating.
Reduce the appearance of lens flare and ghosting.
Specification - Sigma 17-70mm f2.8-4 DC Macro HSM Lens - Pentax Fit