Designed specifically for APS-C sized sensors and the Pentax K-mount cameras.</br>Internal focusing and zooming allows for more usability and functionality</br>Minimum Focusing Distance 28 cm/ 11.0 in</br>The 18-35mm is ideal for landscapes, portraits, still life, snap shots, casual, and close-ups</br></br>Product Description</br></br>First wide-angle to standard zoom lens to achieve a large aperture of 1.8</br><br/>http://www.amazon.com/gp/product/B00DE75B0U