The HD PENTAX-D FA 15-30mm F2.8 ED SDM WR, when mounted on the PENTAX K-1 camera body, covers a focal-length range from 15mm ultra-wide-angle to 30mm wide-angle. With its exaggerated ultra-wide perspective and high-resolution imaging power, it captures dynamic, sweeping views of subjects, making it an ideal choice for landscape photography. Treated with PENTAX-developed HD Coating, the lens produces well-defined, fine-detailed images with ample light levels even at the edges of the image field, while effectively reducing distortion and chromatic aberration.