C52134 Rotating 4-way prism
C52134 Rotating 4-way prism: multiplies the projected image by 4 and turns it on its axis continuously, making a full, continuously moving image; speed of rotation: 4 rpm.
C52134 Rotating 4-way prism: multiplies the projected image by 4 and turns it on its axis continuously, making a full, continuously moving image; speed of rotation: 4 rpm.