Pinterest Lens is a visual search tool that allows users to discover ideas and products by taking a photo or uploading an image. It uses advanced image recognition technology to analyze the picture and provide relevant results, such as similar items, DIY projects, or style inspirations. With Pinterest Lens, users can explore a wide range of categories, including fashion, home decor, and food. This feature enhances the Pinterest experience by making it easier to find inspiration based on real-life images, helping users turn their ideas into reality.