How to take time-lapse photography, scene selection and camera setting of the Milky Way galaxy at night

Milky Way time-lapse photography, also known as satellite-orbit time-lapse photography, generally requires clear weather, good air permeability and more time for stars, so it is generally possible to choose a place with higher altitude, of course, it is also possible in cities, which requires higher air quality and less terrain. Camera settings require door B. To prepare ND filter, lock cable release, stopwatch and tripod with good stability, cable release will talk about the specific choices below. < P > The scene requires that the ground scenery has a certain illumination, which is usually 1.5 to 3 times higher than the sky illumination. The ground scenery is basically fixed and invincible, such as stones or some tree trunks with few branches and leaves, to avoid the phenomenon that the scenery is too blurred and trailing caused by the slow shutter speed during shooting, and to avoid the visual discomfort of human eyes. The ground scenery should not be too large to cause too much occlusion of the star orbit.

preparation for shooting. Choose a good place to stand the tripod, because the shutter speed is too slow, so the tripod must be stable. You can choose heavy objects such as stones on the spot to hold the tripod down as far as possible to avoid the wind.

camera settings. Adjust the sensitivity to the lowest level. B-door exposure, the photo format is RAW, the lens is manually focused to adjust the focus, and the lens is added with an ND mirror to make the exposure time reach 1 minutes. grey mirror can add more. Note that domestic or low-end ND mirrors will change the color temperature, which is almost nonexistent in high-end ND mirrors. If the funds are limited, it can be adjusted back in the later period, which is why the RAW format is selected. Connect and lock cable release. Look at the shutter opening on the shutter line and lock the shutter at the same time. Look at the time. When it's time to unlock the shutter, the exposure will end. In this kind of time-lapse photography, the requirement of time interval is not so strict, so the next shooting can be done directly after the exposure storage is over. Because of the error of exposure time, exposure smoothing can be done in LRT later.

Galaxy photography can't be done at once or twice. Be patient, try several times and keep summing up.