The ACULON A30 10x25 is an extremely portable binocular that weighs in at less than 10 ounces. This is a quality optic at an affordable price that you can take with you on any outdoor adventure. Ergonomic Body Design: The body design of the ACULON A30 makes it easy and comfortable to hold throughout periods of extended use. Smooth Central Focus Knob: This fast and smooth range of focus allows for quick viewing. Multicoated Lenses: Nikon's lens multicoating enhances image brightness. The environmentally-friendly Nikon lenses deliver astonishing clarity and precision in a lighter-weight, lead and arsenic-free glass composition.