The E Series reaches new levels of excellence and value with the all-weather assurance of Bushnell's exclusive RainGuard HD coating. Built with a lightweight magnesium chassis and fully multi-coated optics for amazing light transmission, the E Series demonstrates excellence in the field or on the water. Available in 8x or 10x magnification with powerful light-gathering 42mm objective lenses, E Series binoculars also feature improved high-resistance twist-up eyecups and fine-click adjustments built into the diopter.