Weather and dust proof; Classic focal length for the standard zoom range; Aspherical lens element; Quick-Shift Focus System; With a focal length range of approx. 28-85 mm (crop factor 1.5x) this lens is the classic standard zoom lens. Due to its compact dimensions and small size, the smc PENTAX-DA 18-55 mm F3.5-5.6 AL WR is particularly suitable as a constant companion. Always with a camera is very important, because how often is a photographer better to leave his camera in his pocket to protect it from sand, dirt, dust or water. With PENTAX cameras, the photographer has long been in the front row when it comes to adverse conditions. The new WR lenses are each equipped with 6 seals and are ideally suited as constant companions. This new wide-angle zoom lens is equipped with the new PENTAX proprietary SP coating. SP stands for Super Protect. This fluoride coating, based on nanotechnology, protects the front lens against dust, grease residues (eg fingerprints) and simplifies cleaning of the front lens.