Adult Telescope Children's Beginner Multi-Layer Coating Optical Element With Tripod Astronomical Refractometer Set

[ multilayer coating] - effectively eliminate the interference of urban light pollution, and the observation effect of crater is clear and three-dimensional. Eliminate stray light, increase transmittance, clear image. If you have any questions, you can contact us at any time and we will provide you with the best answers. [red dot star finder] - accurately locate the position of the star, and the eye does not need to be close to the star finder. [Easy to assemble and disassemble]-There are no complicated and small installation details, and the entire device can be installed without any tools. Beginners can also try manual installation. [horizontal theodolite] - the horizontal theodolite is easy to adjust, and equipped with an adjusting rod, it is more convenient to observe stars.