- Offers high resolution image as far as 300 m - Material: acrylic - Dome shell precision: 0.5 ~ 1 m - Surface roughness: 1 ~10 nm - Light transmittance: larger than 92 percents - Distortion: smaller than 0.1 percents - Refractive index: 1.491 - Dispersive coefficient: 57.2 - Surface rigidity: 3 H