Albinar 500mm f/8 Super Telephoto Mirror Lens for Sony Alpha NEX Cameras 5N 7 C3 5 3 500mm f/8 Studio Series Telephoto Manual Mirror Lens Use with manual or automatic SLR & DSLR cameras Multi Coated low-dispersion glass, anti-reflection coating A Multi-coated low-dispersion glass capable of producing sharp, high definition images T-Mount Lens (T2-thread) with Sony Alpha NEX adapter