1. Large-aperture objective lenses for bright, clear viewing The JUPITER-series models incorporate large objective lenses with an aperture of more than 40 millimeters to provide superb light-gathering power. Even in poor lighting conditions — such as when viewing at dusk, indoors or at night sporting events — they assure a sharp, high-contrast image of the subject. With a choice of magnification ranging from 8x to 16x, users can find the model that best suits their intended applications, including astronomical observation. 2. Bright, clear field of vision The optical element has been treated with a multi-coating process to minimize unwanted reflection of light, delivering a well-defined subject image, free of flare and ghost images. 3. Other features - Functional exterior design optimizes ease of use, including easy access to the focus ring and a comfortable hold of the binocular body - Exterior rubber coating assures a firm hold of the body and helps to prevent accidental slippage - Optional TP-3 tripod adapter offers quick, effortless mounting of binoculars onto a tripod.