Optically, a crystal ball is a ball lens. For typical materials such as quartz and glass, it forms an image of distant objects slightly beyond the surface of the sphere, on the opposite side. Unlike conventional lenses, the image-forming properties are omnidirectional (independent of the direction being imaged). Glass ball photography, also known as crystal ball photography, uses refraction to capture unique images. A crystal ball (lensball) is placed in front of a scene the scene is then refracted in the ball. Castel Pietra is a castle in Trentino, in the Primiero valley. It overlooks the town of Tonadico, being placed on an erratic boulder to the left of the state road for the Cereda pass, at the entrance to Val Canali. Decor Photography, Ball Optical Glass, Reflective Spheres.

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拍攝者： Rechitansorin