Predator Diamond Coating added to HD glass generates superior light transmission, high contrast and high-definition imaging; Compact roof prism optical path ensures the optical tubes are thin for easier handling; 10x magnification brings distant subjects in close for detailed observation and identification; 42mm objective lenses keep the overall form factor small while offering the low-light performance; Extra low-dispersion HD glass reduces the appearance of chromatic and spherical aberration; Wide 60 deg apparent angle of view presents an immersive observational experience with edge-to-edge clarity