How does Nikon d7500 shoot the starry sky or something?

The picture quality of Nikon D7500 is as good as that of D500, and there is no problem shooting stars and tracks.

You can set the camera to TV, set F4.0/ISO6400/ shutter 1 sec, adjust the composition, fix the tripod and shoot the foreground. Connect the camera to the interface between the computer and the mouse automatic clicker, set the speed to click once every 30 seconds, and then press Ctrl+F3 to activate the mouse automatic click function to shoot the starry sky.

The starry sky is a kind of night photo. It illuminates the foreground with artificial light, and then opens the shutter to expose for 10 hour, which means that the sky is not dark, but the blank of the photo is covered with the tracks of stars. Such a long exposure time can only be tried at the new moon to avoid overexposure and keep a good contrast between the trajectory of the sky and the stars. The best effect is to set the aperture between f/5.6-f/2.8, and the foreground illumination is calculated according to the selected aperture. When shooting star trails, you should choose a night sky with no clouds, less pollution and clear stars.