The Vivitar Automatic Tele Converter 2x-3 is a high-quality teleconverter lens designed for Nikon F mount cameras. Made in Japan, this converter allows for a 2x to 3x focal length range, providing versatility in shooting various subjects. The included case ensures protection and convenience when not in use. Perfect for photographers looking to enhance their lens options with a reputable brand like Vivitar. Thanks for looking. 👀