Do I need to buy a camera to take photography as an elective course?

The first thing that celestial photography needs is a telescope head. More than 500 can shoot the moon or something.

It's best to use an astronomical telescope. You can shoot some nebulae or something with 1200.

The camera needs to have an interface with the astronomical lens, just through the interface.

There are several requirements for cameras.

1. There must be a B gate or a T gate to realize long exposure.

2. It must be low noise. Generally, low-temperature cooling and modification are needed to solve the problem of ccd heating and noise caused by long-time exposure.

3. When shooting some nebulae, it is necessary to remove the infrared filter in front of ccd to ensure the full-color image of nebulae.

4. Automatic orbiter, which can track the trajectory of the planet.

Burning celestial photography also costs money. Hehe, I need money, and I have to go to places far away from the city and the top of the mountain to make good films. It is not easy.

General digital SLR can be modified to shoot.

Machines under 2000 yuan can only be shot for one month, and can't go any further. Anything with a far focus of more than 400 is ok, and it is better to add a double mirror or something, but it can only be played at a small level.