The semicircular spherical DOME pushes the water sur away, allowing the lens to have enough field of view, so that objects above<br> and below the water can be photographed, giving you a great shooting experience and taking great pictures.<br> If you only use a simple camera to take pictures that are half underwater and half above the water, it is difficult for you to take good pictures,<br> because the water blocks the perspective, underwater objects are distorted, and water will magnify objects like a convex lens.<br> Therefore, if you want to balance these things, you must use DOME PORT.<br> The semicircular spherical DOME pushes the water sur away, allowing the lens to have enough field of view, so that objects above and<br> below the water can be photographed, giving you a great shooting experience and taking great pictures. Water will magnify objects in the water<br> like a convex lens. Direct shootingwill make objects in the water distorted and larger. Compared with objects on the water sur, the photos<br> taken in this way are very inconsistent. Using DOME PORT can well coordinate underwater and sur objects,<br> so that the photos taken are very normal, giving you a real world.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin