Parameters: Number 522078 8x20 BT * 8 effective magnification objective lens diameter 20 T * anti-reflective coating multi-coated prisms P * multi-coating phase correction of vision 115m in 1000 pupil diameter 2.5mm Focus wheel adjustment range -6dpt diopter adjustment ± 2dpt Adjustable mirror 27-72.5mm pupil Twilight factor 6.25 minimum brightness within visual range 12.65 3.3M punch nitrogen waterproof, fog size L102 * W93 * H34mm Weight 180g ================ ========== (licensed · warranty period of 10 years) Features: clever small size, excellent optical quality. Eyepiece lens composed of five high-tech to give high-quality images. Bespectacled person to complete the vision. Schmidt-Pechan prism compact design, combined with innovative electrolyte-reflective coating layer, which can effectively reduce the loss of light absorption and increase light transmission. Zeiss T * - King contrast multi-coated to make things clearer and more uncertain, more realistic colors. Suitable for close viewing. Precision mechanical properties of compact and durable, beautiful design, light and easy to operate foldable, compact and lightweight rubber shell, have the effect of reducing noise and vibration using fiber reinforced plastic body manufacture, lightweight yet sturdy four swing-up goggles, fit with wearing glasses, using lockable diopter adjustment to balance the left and right eye parallax of waterproof and filled with nitrogen to prevent penetration of dust and water vapor matter what you have to pursue, exquisite style, compact portable telescope victory will be your ideal selection. Whether in outdoor sports or other leisure activities, this can be placed in pocket, durable binoculars worth having. This compact mirror telescope body filled with nitrogen, which prevents dust, waterproof, anti-fog lenses, and can withstand the test of climate change, who is hunting a good helper. 10 * 25 BT * Victory portable telescope that can be quickly folded into a jacket pocket, pulled out a hand when needed can be put into use. She can not only distant images closer to the front, but also in the near to 2.6 meters used to satisfy the user to observe the scene for minor, such as butterflies and insects. High magnification, high-definition image quality, the lens barrel and the minimum volume of lightweight design. This is a victory 10X25B T * has the characteristics of a portable telescope. Both light telescope, clever, almost able to put all of the pockets. Because wearing dustproof, waterproof, jacket, under any weather conditions are trustworthy. After folding portable telescope, just a minimum of space. Designed for those who wear glasses and eye eyepiece cup, so wearing glasses can also get the full perspective of the landscape.