The Sigma 10 mm - 20 mm F/4.0-5.6 powerful camera lens is wide angled and is very powerful for indoor and landscaping shooting. Sigma camera lens has multilayer lens coating that reduces flare and ghosting and offers the photographer greater freedom of expression. Sigma 10mm-20mm f/4.0-5.6 lenses have three special low dispersion elements to compensate for color aberration and offer excellent correction of distortion with two aspherical lenses. Sigma 10 mm - 20 mm F/4.0-5.6 lens filter size is 77 mm and, if needed, a circular polarized filter can be used. A Sigma camera lens can be automatic or manual and with its non-rotating barrel can perfectly suit the petal shaped lens hood. Sigma 10 mm - 20 mm f/4.0-5.6 powerful camera lens has a minimum focal distance of 9.4-inches at all focal lengths. Weighing about a pound and measures 3.3 x 3.2-inches, this lens has 14 elements in 10 groups. Sigma 10 mm - 20 mm F/4.0-5.6 is fast, silent, accurate and is built to last.