Sigma 18-35mm F1.8 DC HSM A Nikon mount lens review: Unrivalled Standard Zoom
Introduction Sigma has garnered praise for the Canon EF-S mount version, and now the Japan-based optical company has released the lens with a Nikon F mount for use with DX format cameras. It maintains the same optical formula as before and includes 17 elements in 12 groups with five low dispersion glass elements and four elements with aspherical surfaces to reduce aberrations while keeping the lens as small as possible.It has an equivalent field of view to a 27-52mm lens and uses and ultrasonic type AF motor for near silent focusing down to just 28cm. Inevitably
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