The Stepping Ring 37-49 by Samigon is a high-quality accessory designed for photographers to mount a lens filter or accessory with a 49mm thread onto a lens with a 37mm thread. This Step up Ring allows for seamless compatibility between different sized lenses, ensuring a secure and precise fit. Made with durable materials, this stepping ring is designed to last and provide reliable performance. Ideal for professionals and hobbyists alike, this stepping ring is a must-have tool for expanding your photography equipment. The Samigon Stepping Ring 37-49 is a versatile and essential accessory in the Step up Rings category.