Pentax has unveiled prototypes of three new digital SLR lenses designed for exclusive use with Pentax digital SLR cameras. The trio of zoom models are the PENTAX-DA* 16-50mm F2.8ED AL[IF], smc PENTAX-DA* 50-135mm F2.8ED [IF] and smc PENTAX-DA* 60-250mm F4ED [IF].

The lenses have been developed for Pentax K- and *istD SLRs as premium, high-end ‘star’ lenses. They will feature the Pentax KAF2 mount, which incorporates additional electrical contacts to drive a built-in supersonic motor used in auto focusing.

All three lenses will be available in March 2007. More details are available at www.pentax.co.uk