The EO-32 consists of a scaled platform which is held stationary relative to the optical axis by a bench carrier (not included). A smoothly rotating table supports prisms, refraction tanks, or mirrors. A rotating arm assembly will hold at its end any Daedalon target screen or filter which uses our 9.5mm mounting pin. An integrated pointer indicates the arm's angle relative to the optical axis for quantitative investigations of refraction and reflection. Construction is clear anodized aluminum.