The Sigma 10-20mm f/4.0-5.6 DC EX AF lens is a versatile zoom lens designed for Nikon F mount cameras. It offers a wide focal length range of 10-20mm, allowing photographers to capture a variety of subjects from landscapes to architecture. With a maximum aperture of f/4.0-5.6, this lens performs well in low light conditions and can achieve a shallow depth of field for creative effects. Additionally, the lens features both auto and manual focus options, providing flexibility for photographers to achieve precise shots. Overall, this Sigma lens is a reliable choice for photographers looking for a high-quality zoom lens for their Nikon F mount camera.
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