On night vision interpretation: general optical telescopes are low light level night vision. In the case of low light level at night, the telescope can draw the target closer through the optical amplification function, which is brighter than the naked eye, but it cant be used in the all black environment. The all black environment needs to use a professional infrared night vision instrument, which can be seen in the all black environment through infrared induction, but the infrared night vision instrument is not Its suitable for daytime and the is generally This is an ordinary optical magnifying telescope