Here we suggest that you’d better choose the SLR for shooting. In order to prevent camera failure caused by camera problems, it is more appropriate to use a more stable SLR camera. The main purpose of this paper is to get a better picture quality when using the ISO < p > camera. In addition, it can also maximize the use of wide-angle lens to shoot a broader picture. < / P > < p > of course, if you use the APS-C entry camera, you can also shoot the star field, but the noise will be a little bit more and the range of view will be smaller. < / P > < p > an ultra wide angle lens is very necessary for starfield photography. If conditions permit, the larger the maximum aperture, the better. It can be said that the wide-angle lens with large aperture is prepared for Xingye photography. The larger the aperture, the lower the ISO we can use for shooting, and the higher the image quality. < / P > < p > the shutter line is a necessary accessory for Xingye photography. It can prevent the camera from shaking when the shutter is pressed, so as to get a clearer picture. Here is a friendly reminder that the shutter cable does not need to be purchased from the original factory. The function of the auxiliary factory is the same. It has been used for several years without any problem. < / P > < p > because slow door shooting is required, tripod is also necessary to ensure camera stability. As mentioned above, the shooting environment of Xingye photography is often desolate, because we have to go to places without light pollution So we need some small tools to help us in shooting. < / P > < p > first find the right direction and determine the shape of the star trace in your composition. If you are facing due north, you can take a round star orbit with the North Star as the center; if you face northeast or northwest, you can photograph the fan shaped star track. As for why this phenomenon occurs, please read the relevant junior high school geography textbook. < / P > < p > in a dark environment, it’s much easier to have a flashlight, whether it’s looking for equipment or operating a camera. It is suggested to choose infrared flashlight, which will not cause temporary blindness. American companies begin to give up R & D: who should pay for corporate research?