Buy from Amazon.com : http://fave.co/1GnBSLg <br /><br />Tokina AT-X 12-28 F4 PRO Dx for Nikon<br /><br />Product Description : <br />Wide-angle to standard length zoom provides 35mm focal range equivalency of 18-42mm <br />An AFMF clutch mechanism provides one-touch control when switching between auto and manual focus <br />A GMR magnetic precision sensor offers fast accurate autofocus and the SD-M Silent Drive-Module means that the AF motor is virtually silent which is important when shooting HD video <br />Ultra-low dispersion glass and aspherical lens elements minimize distortion and aberrations for sharply rendered images throughout the zoom range
