Pentax will exhibit three DSLR lenses currently under development at this week’s PMA show. The smc PENTAX-DA 55mm F1.4 SDM is a moderate-telephoto lens offering a focal length equivalent to 84.5mm. The smc PENTAX-DA 60-250mm F4 ED [IF] SDM is a telephoto zoom lens covering moderate- to super-telephoto ranges (92-383mm). Finally, the smc PENTAX-DA 17-70mm F4 [IF] SDM is a moderate-telephoto zoom lens equivalent to 26-107mm. Two of the lenses are slated for a Summer 2008 release. Read the whole article here