Opteka 500mm f/8 HD Preset Telephoto Lens with Microfiber Cleaning Cloth for Sony Alpha E-Mount a7r, a7s, a7, a6000, a5100, a5000, NEX-7, NEX-6, NEX-5T, NEX-5N and NEX-5R Digital Mirrorless Cameras Type: Telephoto Lens Focal Length: 500 mm Camera Mount: Sony (E mount for NEX) Aperture: Maximum: f/8 Minimum: f/16 Focus Type: Manual Focus Minimum Focus Distance: 33 feet Parts: 10 Labor: 10 |