The Chinon Auto-Chinon 135mm F2.8 M42 Telephoto lens is a high-quality lens designed for photography enthusiasts. With a maximum aperture of f/2.8, this telephoto lens allows for capturing detailed images with a shallow depth of field. The manual focus feature provides precision and control over your shots, while the M42 mount ensures compatibility with a range of cameras. The 135mm focal length gives you the versatility to capture a wide variety of subjects, making it a valuable addition to any photographer's lens collection.