Lens attachments refer to a category of optical accessories rather than a specific brand. These products are commonly used in industries such as photography, videography, and industrial imaging. They include lens filters, adapters, converters, and other accessories designed to enhance or modify the functionality of camera lenses. Companies like B+W (Germany), Tiffen (USA), and Hoya (Japan) are prominent manufacturers in this space. Industrial suppliers like Grainger and Radwell may offer specialized lens attachments for machine vision, surveillance, or scientific applications. These products are essential for professionals seeking to optimize image quality, protect lenses, or adapt them for specific use cases.