Versatile T-Mount Adapter compatible with Pentax K, Pentax Autofocus, and Pentax DSLR's Cameras Allows attachment to a wide range of optical devices including lenses, telescopes, microscopes, enlargers, and bellows Features a T-Mount thread for broad device compatibility Ideal for exploring macro photography and astronomical imaging Transforms your camera into a multifunctional imaging tool Essential accessory for expanding photographic capabilities and versatility