This Tamron SP F System 2X Tele-Converter Lens is a great addition for Pentax K cameras. With auto focus type and a fixed/prime focal length, it is perfect for capturing high-quality and clear images. This lens is compatible with Canon and Tamron brands and is in excellent condition with BBAR MC coating. The lens belongs to the category of Lenses, Lenses & Filters, and Cameras & Photo. The Tamron SP series is known for its superior optical performance and this lens lives up to that reputation. Don't miss out on this opportunity to enhance your photography with this amazing lens.