The JC Penney Auto 2x Tele-Converter for Pentax K Mount is a high-quality teleconverter designed specifically for Pentax cameras. Made in Japan, this teleconverter has a fixed focal length of f/1 and is compatible with Pentax cameras. With manual focus capability and an aluminum exterior, this teleconverter is a reliable and durable accessory for your photography gear. Perfect for capturing distant subjects with precision and clarity, this teleconverter is a valuable addition to any photographer's kit.