Tydeux, Your Good Assistant in Outdoor Sports! Variable 16x to 48x magnification and dynamic lens focusing system for close-up and long range views - makes it easy to zoom in on target. 45 degree angled eyepiece provides a more comfortable viewing effect and avoids physical pain caused by prolonged observation. Excellent Work, Comfortable Experience! ---------- Other Spotting Scopes for you ---------- 16-48x65/45° Spotting Scope 15-45x60/45° Spotting Scope 20-60x80/45° Spotting Scope PRISM/ POWER/ OBJ.LENS DIA BAK4 prism, 16-48x magnification, objective lens diameter 65mm. PRISM/ POWER/ OBJ.LENS DIA BAK4 prism, 15-45x magnification, objective lens diameter 60mm. PRISM/ POWER/ OBJ.LENS DIA BAK4 prism, 20-60x magnification, objective lens diameter 80mm. EXIT PUPIL DIAMETER/ DIST Exit pupil diameter is 1.45-4.33mm, Exit pupil dist is 16.5-18.8mm. EXIT PUPIL DIAMETER/ DIST Exit pupil diameter is 1.3-4mm, Exit pupil dist is 14mm. EXIT PUPIL DIAMETER/ DIST Exit pupil diameter is 1.3-4mm, Exit pupil dist is 14mm. WATER PROOF/ NITROGEN FILLED Waterproof effect is 1.5m/3min, dry nitrogen filled helps prevent fogging. WATER PROOF/ NITROGEN FILLED Waterproof effect is 1.5m/3min, dry nitrogen filled helps prevent fogging. WATER PROOF/ NITROGEN FILLED Waterproof effect is 1.5m/3min, dry nitrogen filled helps prevent fogging.