Designed for use with Pentax K-mount digital SLR cameras, this fisheye zoom lens provides a zoom range covering the fish eye to ultra wide angles. The development of this new zoom lens was based on the previous version with high grade, multi layer HD coatings applied to the optical elements for high contrast images with edge to edge sharpness and free of flare and ghost images. The exterior has been totally redesigned to match the design of the latest Pentax K-mount digital SLR models, and also to make its lens hood removable. When mounted on a Pentax K-1 Mark II camera body, you can remove the lens hood to produce nearly circular fish-eye images. This zoom lens provides a 180 degree diagonal angle of view in the APS-C format at a focal length of 10mm to deliver eye catching fish eye images. Since the angle of view shifts dramatically with a slight change of focal length, you can easily create visual expressions typical of an ultra wide angle lens, such as exaggerated perspective, deformed subjects and a pan focus effect to capture the entire image field in focus. An SP (Super Protect) coating has been added, which is highly repellent to water, grease and dirt, using a Pentax exclusive fluorine deposition process, making it easy to wipe off any stains such as fingerprints. Quick Shift focus system to provide instant shift to manual focus operation after locking the subject in focus during AF operation by pressing the shutter release button halfway down, usable at any time during AF operation. 14cm close focusing distance. Comes complete with lens cap, lens hood and lens case.