Features:-With 10x magnification and a large 25mm objective lens, it provides clear and sharp images, and a large field of view of 1000 meters for excellent details, so you can observe many things without changing your position.-The objective lens adopts multi-layer green FMC broadband film and the eyepiece adopts blue FMC coating, which can achieve 99.5% light transmittance, giving you a good image and providing you with an extraordinary experience.-The BAK4 prism has good light transmittance, glare reduction, color rendering and contrast, no dark edges, bright images, and night vision in low-light conditions (it can be used at night, but not in complete darkness).-A large central focus knob and diopter adjustment ring make it easy to focus on your target. .