Kenko UltraVIEW 7-15x35 Porro Prism Binoculars, 15x Magnification, 35mm Aperture, Zoom Type, Black, BN-100280

These compact, attractive Porro-style binoculars feature a powerful lever that easily adjusts magnification from 7x to 15x, allowing you to zoom in and observe to suit your needs. The low zoom ratio minimizes loss of brightness and makes viewing easier. The objective lens has an effective diameter of 35mm. A magenta coating reduces light transmission loss. Brightness: 25-5.4° Actual field of view: 5.7°-3.7° Exit pupil: 5.0-2.3mm