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Rating: no ratingThe 600g lens has a 103.9 degree field of view with two Super-Low Dispersion glass and one aspheric glass elements. Tokina's exclusive One-touch Focus Clutch Mechanism allows you to switch between AF and MF by snapping the focus ring forward for AF and back toward the lens mount for manual focusing.
It's designed to stand up to the rigours of daily use in a wide variety of shooting conditions and environments. The lens is fitted with better seals around moving parts and although it's not waterproof it's much more water resistant than previous lenses.
The f/4 aperture makes viewing and auto focus easier in lower light situations. It fits Canon EOS or Nikon-D cameras.