How does Canon 500D EFS 1855mm shoot the starry sky?

First, be sure to find a place where there is no stray light around, otherwise the stray light in the surrounding environment will cause the picture to be too bright. It is best to shoot in the countryside or mountains.

Second, the weather must be very sunny when shooting. If you can only see a few stars, there are only a few dots on the picture, and there is no starry sky effect at all, let alone shooting the star track.

Third, choose the "B" file to shoot. When the focal length is 18, the minimum aperture of 18-55 lens should be 22. Open the aperture to 20 and adjust the sensitivity to 100.

Fourthly, if focusing, choose manual focusing (that is, set the AF/MF selection key on the lens to "MF"); if focusing, rotate the focus ring counterclockwise to the place close to the maximum position (close to infinity).

Fifth, the exposure time depends on whether you want to shoot the starry sky or the orbit. The exposure time is 15 seconds to 20 seconds for shooting the starry sky (for reference only, it should be adjusted according to the actual situation), and it should be exposed for at least half an hour for shooting the star track (but not too long, otherwise the camera photosensitive element can't stand it). You can't hold such a long exposure. You must have a tripod and a cable release.