Cinda Xiaohe maximum magnification.

That depends on the weather. If the weather is right, it is no problem to go up to 300 according to the weather conditions. A little higher, the requirements for the environment will be higher.

Photography does not emphasize multiples. For the sake of understanding, I compare photography with vision. If the planet is photographed, it is estimated to be 2000 times the size of the planet on the computer screen. Of course, this multiple shows nothing.