The Tokina 3X AF High Definition Digital Telephoto Lens is a high-quality teleconverter designed for camera lenses with a 52mm front. With a magnification factor of 3x, this lens allows photographers to capture detailed and clear images from a distance. Specifically designed by Tokina, this unit is guaranteed to provide sharp and vivid results for photographers looking to enhance their lens capabilities. Perfect for those seeking professional-level performance and versatility in their photography equipment.