Instructables

Detailed annotation of starry sky photographing method

Picture of Detailed annotation of starry sky photographing method
Starry sky photos must  be edited on pic editors after taking, but first you should take some qualified pictures.
The selection of location: you need to find a place away from the urban area and avoid light pollution. Find a suitable foreground, you’d better photograph from a low angle slightly so as to avoid strong light pollution near the horizon and photograph the obvious stars in the sky.
 
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Step 1: The superposition method of the orbit of the stars under Crescent Moon:

Picture of The superposition method of the orbit of the stars under Crescent Moon:
The selection of time: you should avoid the sunlight, and start to photograph almost two hours after sunset and two hours before sunrise. You should also avoid moonlight, the orbit of the stars will be very sparse with irradiation of moonlight, but ground scenery will be illuminated and unique. The method of traditional single long exposure basically has no way in face of the sky of moonlight, it can only have a few minutes of exposure, the superposition method is not limited by exposure time, it can photograph for a long time and present different views.

The ground scenery is illuminated by moonlight: If the weather condition is better, the light pollution is light, and the exposure is easier to control, the ground can be also lighter, we can get the effect almost the same as daytime theoretically.

Step 2: The selection of weather:

Picture of The selection of weather:
It must be very transparent and cloudless day.

Step 3: Focusing:

Picture of Focusing:
it is not easy to get accurate focusing of the starry sky in the dark night. The central focuses of the middle and high end camera are very powerful, they can autofocus against the brightest stars such as Venus, Sirius. For the low-end camera can complete focus of the stars, you can make preparation in advance, remember the location when complete the focus in the moon.

Step 4: Metering and composition:

Picture of Metering and  composition:
You can use the highest maximum aperture, the highest sensitivity, the short exposure time (10 seconds) to photograph one photo, determine the actual needs of the exposure parameters according to the playback histogram and calculate the needed amount of exposure according to the reciprocal rate . This is suitable for single long exposure method and superposition method.