

| The picture above is a comparison of parameters of two binoculars, SV202 and SA205. The new SA205 binoculars use ED glass, which can eliminate chromatic aberration. If you are interested in our SA205, you can click the link below to learn more. SA205 8x42 ED Flat-field Binoculars https://www.ebay.com/itm/196215432138 SA205 10x42 ED Flat-field Binoculars https://www.ebay.com/itm/315238645652 |
ED glass ED glass has this unique characteristic and when combined with other glasses minimizes the effects of the secondary spectrum. 21mm/24mm eyepiece easy to find the object,ensures more light passing to ease up your eyestrain. 32mm/42mm/50mm objective lens 32mm/42mm/50mm objective lens gathers more light and that you will see objections brighter and larger. So this 10×50 binocular is good to be used in lower light environments and in special in stargazing/astronomy, where a 50mm objective lens diameter is not that bad in observing some deep-sky objects. Magnesium alloy bodyThis SV202 binocular is of low density (about 1.8g/cm3 magnesium alloy high impact load capacity and high quality magnesium alloy body. 100% waterproof 100% waterproof internals to handle the most extreme weather conditions,ensuring you can watch uninterrupted views. Fully Multi-coated Glass Fully Multi-coated Glass means multiple coatings on all lens surfaces. And all air-to-glass surfaces are anti-reflective multi-layer coated. Fully multi-coated lenses are typical of high-end optics. BAK4 BAK4 has a high refractive index and lower critical angle than other materials, which means it transmits light better with less light being lost due to internal reflection such as from internal bubbles trapped during the manufacturing process. Whether you wear glasses or not, you can find the comfortable observation position by adjusting the eyecups. The diopter adjustment is a control knob on your binocular. It is designed to let you compensate for differences between your own two eyes. Once you set the diopter, then the two barrels should stay in proper relation. From then on you can focus just by turning the central focusing knob. |
| 1.Adjust the interpupillary distance (width between the two barrels) until the two circular fields of view merge into one single circle. 2.Close your right eye, look through the left eyepiece, and turn the central focus wheel until the image is clear. 3.Close your left eye, look through the right eyepiece, and adjust the right eyepiece diopter until the image is sharp. 4.Keep your eyes at the proper eye relief distance from the eyepieces. Too close or too far will cause dark edges or a blurry view. |






