Refracting Telescope Monocular Astronomical Portable Travel Tripod HD Space Phone Clip

[400mm focal length] - the longer the focal length is, the larger the imaging size and the larger the column size are, the wider the field of vision and depth of view are, and the observation is easier and more convenient. [multilayer coating] - multilayer high transmittance coated lenses improve the optical system performance of the telescope for more detailed observation. [sun bard film] - 5.0 density bard film can directly watch the sun with eyes to ensure that strong light will not burn eyes. [star searching mirror] - accurately locate the star searching mirror, and quickly find the orientation of the positioning planet with cross cursor star searching mirror. [orthoscope] - orthoscope, high definition eyepiece, refractive optical structure, to solve imaging problems.