The O-Flash Ring F170 Ring Light/Macro Flash is a high-quality accessory designed for Canon and Nikon cameras. With a sleek design and a weight of 23.63 oz, this product provides excellent lighting for macro photography. It also has TTL exposure control capability, making it easy to achieve precise lighting effects for your photos. The manufacturer does not offer a warranty, but the O-Flash brand ensures reliability and performance in your photography setup.