The pinnacle of clarity and color definition. The Cronus G2 20-60x86 features dual layers of ED glass to eliminate chromatic aberrations, providing the sharpest detail in Athlon's spotting scope line-up. A convenient dual focusing system provides a quick coarse focus, while fine focus adjustment makes hitting peak focus a breeze.Features :45 Degree Eyepiece AngleApochromatic Lens SystemUHD GlassXPL Protective CoatingBAK4 Prisms