Soratama is a filter that I invented in 2009, meaning “aerial ball”. By using a filter attached with a transparent sphere, you can take photos of the transparent sphere floating in the air. The point is to be able to simultaneously capture the inside and outside scenes of the ball in one frame. The inside of the ball is upside down. I designed this filter to get analog effects, not digital effects. I am also confining my beloved things in this ball.