Pentax HD-DA 20-40mm F2.8-4 ED Limited DC WR

Sharp throughout zoom range. Weather-sealed design. Compact. Metal lens barrel.

Pricey. Some distortion at the wide end. Modest zoom range.

Conclusions The Pentax HD DA 20-40mm F2.8-4 ED Limited DC WR is a solid choice for photographers in want of an all-weather zoom. It's compact, light, and sharp throughout its zoom range, even if that range is rather unambitious. But, even after...