Under the banner of Pentax's commitment to quality and performance, the Hd Da 20-40mm f/2.8-4 Ed Limited Dc Wr Lens, in a sleek silver finish, is a versatile tool for photographers seeking to elevate their craft. Designed specifically for K-mount Aps-c cameras, this high-quality standard length zoom lens offers a unique blend of wide-angle and standard-length photography capabilities.The lens features an impressive 35mm focal length equivalency of 30.5-61.5mm, providing a broad range for capturing everything from expansive landscapes to intimate portraits. Its advanced optical design, which combines an Ed (Extra-low Dispersion) glass and a super-low dispersion glass element, ensures clear, high-resolution images with edge-to-edge sharpness.The Pentax-developed Hd coating on the lens elements minimizes unwanted reflections, combating flare and ghosting for high-contrast images that resonate with realism.