Star field and time-lapse photography, how to use the lens and fuselage together is the most suitable.

Orbit, right? The orbit of a star is shot at a fixed time, more than half an hour, usually one to two hours. Then it is synthesized into pictures or videos in some software. Although time-lapse photography also takes pictures at a certain interval, the interval is variable, for example, the post-synthesis can be made into a fast and slow lens effect. Better SLR cameras are needed for shooting star tracks and time-lapse photography, but now some people use mobile phones to shoot star tracks, which is quite good. In terms of lens selection, large aperture lenses such as F 1.4 or F2.8 with B-door are generally used (slow shutters such as 1/ s can be used without B-door). Canon 70D, Nikon D7 100 and other above models can be used.