No. Photography lenses are not waterproof. Some camera lenses have rubber seals that make them water-resistant to protect parts of the lens, but they are not fully waterproof. These types of water-resistant lenses protect the camera lens's internal components to some degree from dust and moisture, but they can still be damaged when fully submerged in water. It's important to be mindful of this when using your camera and photo lens in environments where water is present.