Celestron TrailSeeker ED 8x42 Binocular

Celestron's 8x42 TrailSeeker ED binocular (8x power with 42 mm Aperture objectives) provides high-level outdoor performance—a perfect choice for avid birders, hunters, and outdoor enthusiasts. It is packed with optical, mechanical, and ergonomic features that make it comparable to binoculars costing two to five times as much.  ED Objective Lenses Extra-Low Dispersion (ED) glass virtually eliminates chromatic aberration, also known as color fringing, a visual defect common in binoculars. The TrailSeeker ED delivers edge-to-edge sharpness with excellent color correction and razor-sharp images. Not all ED glass is created equal. Celestron's high-quality ED glass delivers visibly brighter, sharper images compared to non-ED binoculars. The difference is especially apparent in low light conditions, such as at dawn or dusk. Coatings and Prisms The TrailSeeker ED features fully multi-coated optics and phase- and dielectric-coated BaK-4 prisms. A binocular can be considered "fully multi-coated