The 10x50 3D Series ED Binoculars from Carson combines extra-low-dispersion (ED) glass elements and BAK4 prisms to transmit bright images that are rich with contrast and detail. Phase-correction prism coatings minimize color fringing while enhancing image clarity. These 3D Series binoculars are configured with 50mm objectives, offering better light-gathering ability than other standard size optics in the series. An O-ring sealed and nitrogen-filled housing enable fogproof and waterproof performance in humid and wet conditions. Textured rubber armor adds impact-resistance and helps the viewer maintain their grip while wearing gloves.