Check the listing for details. K&F Concept Filter Low Profile Filter Ring High Index Optical Glass Lens 52mm MC. Condition: New, Made in China. Listed at 20.00 USD. Brand New, please see pictures This filter will select which light rays will enter your camera lens. It will allow you to remove unwanted reflection from non-metallic surfaces such as water, glass, etc. Constant use of this filter is recommended for clear pictures as well as protection for your lens from accidental scratches. K&F Concept 52mm MC UV Pro..nt Coating for Camera Lens! The K&F Concept Filter Low Profile Filter Ring is a high-quality lens accessory designed to securely attach filters with a 52mm front lens. Made with high index optical glass and manufactured in China, this filter ring offers a low profile design to minimize the risk of vignetting. The brand K&F Concept ensures reliability and durability for photographers looking to enhance their lens capabilities.