The lens is made of all metal, make the mount and the body more closely fit. The surface of the mount uses environmentally friendly paintwork, which prevents rust and corrosion, 12Elements in 10Groups optical design effectively correct of distortion. Photographers can easily complete indoor or outdooe architectural photography.
12mm focal length range, with 100° angle of view, and 0.15m closest focusing distance, providing more shooting possibilities,excellent close-up capability to highlight the subject more. And support filters, lens hood or other accessories to be installed on the front lens, make the creation more extended.
F2.8 large aperture is ideal for night scenes, starry skies and other low-light subjects, and at lower ISO sensitivities you don't need to worry about low shutter speeds to get a false picture.
Lens uses 10groups of 12elements of an ti telescopic structure, the rear groups of floating mirror group focus, effective correction of distortion, in the edge resolution and distortion control has a visible improvement.