Pentax has released a new lens compatible with its digital SLR cameras, including the *ist D and the *ist DS. The smc PENTAX-DA 12mm-24mm F4 ED AL [IF] is the sixth DA-series lens offered by the photo manufacturer. The lens will feature 2x zoom coverage in the ultra-wide angle range with an angle view from 99 degrees to 61 degrees (equivalent in focal length from 18.5mm to 37mm in the 35mm format). The lens has a 13 element/11 group optical construction incorporating ED (Extra-low Dispersion) and asperical optical elements.
