Get close up to your subjects with this 42mm slip-on macro lens for our X2, HD2 and DUB cameras. Close up focusing range underwater (with water in space between lens and pens port) approximately 6 inches to 3.5 feet/15cm to 1.0 meter. Close up focusing range on land (with air in space between lens and lens port) approximately 1.2 inches to 6 inches/3cm to 15cm. Magnification: +12. Model# I-CUL2.