Athlon Optics Cronus 20-60x86mm Spotting Scope was designed to deliver one of the best viewing experiences available. It comes equipped with UHD extra low dispersion glass and an aprochromatic lens system to produce an image with next to no chromatic fringe and enhanced contrast, sharpness and definition. The Cronus 20-60x86mm also features BaK4 prisms with an Enhanced Spectral Prism (ESP) dielectric coating that reflects over 99% of the light back into your eyes resulting in an exceptionally clear and bright with precise color reproduction. In addition, this spotting scope has a rotating ring, allowing it to be attached to a tripod for the most convenient angle for observation. Features of the Athlon Optics Cronus 20-60x86mm Spotting Scope: Apochromatic lens system UHD extra-low dispersion glassESP Dielectric Coating BaK4 PrismAdvanced fully multi-coated lenses Athlon Cronus 20-60x86mm UHD Angled Spotting Scope 311001