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Anonymous users2024-01-24Ordinary astronomical telescopes do not use a power source, and optical astronomical telescopes do not require external energy. However, large astronomical telescopes have a series of electronic devices such as electric drive systems and computers, which require power. (Generally used in observatories).
Hehe, after reading the message you sent, everyone must think that you want to peep, within 500, you can buy it on Suning Jingdong.
The picture below is like this, looking at the distance can be near or far! Up to 10 km!
Although I am a businessman, I should have avoided suspicion, but after all, I understand these things, so let's say a few words. >>>More
Yes, but it must be better lit, not necessarily dark.
First of all, night vision is a lie, it doesn't exist.
500 yuan Price: Polzne 12-24X60 HD desktop more than 1000 yuan Price: Xingtran 80A However, I have been in contact with a batch of this product, and I personally feel that the cleanliness of the eyepiece is slightly less clean than in the early days. >>>More