Traditional Culture Encyclopedia - Photography major - I'm studying photography. How can I shoot the Big Dipper well?

I'm studying photography. How can I shoot the Big Dipper well?

If you just shoot with door B, the stars are basically indistinguishable. If you shoot the stars, especially the Big Dipper, you must connect the telescope with the camera. You can't do anything about the camera itself. If you go to Baidu again, you should add a conversion head.