Shulou(Shulou.com)11/24 Report--

Tomorrow, November 8, 2022, there will be a total lunar eclipse of about 6 hours, of which the moon will disappear completely in the sky for about 4 hours.

The next total lunar eclipse will take two years. This total lunar eclipse will block Uranus, and the next time this coincidence happens, it will take more than 2000 years, so many media directly wrote in the title that the next time will be 2000 years. With the current light pollution, if you live in a city, even if you don't block it, you can't see Uranus.

Today, I would like to introduce to you the guide to watching the total lunar eclipse, and how to take pictures of the total lunar eclipse with your camera and mobile phone.

The shadow of the earth is photographed with the moon, source: Antonio Finazzi (APOD) 1. Causes of a total lunar eclipse A complete total lunar eclipse consists of three processes: darkening of the moon, depletion of the moon and disappearance of the moon.

The earth blocks the sun, forming the earth's umbra and penumbra.

When the moon enters the penumbra of the earth, although the whole body can be illuminated by the sun, it cannot be illuminated by the whole sun, so the brightness will decrease. When the moon enters the earth's shadow, it cannot be illuminated by the sun, as if it had disappeared.

The following is the perspective of the universe when a total lunar eclipse occurs.

2. The schedule of the total lunar eclipse on November 8, 2022, Beijing time:

16:00, when the moon begins to darken slightly (penumbra begins)

At 17:09, the moon begins to be missing (initial loss)

At 18:16, the moon completely entered the earth's umbra (eclipse)

18:59, the center of the moon and the center of the earth's umbra are the closest (eclipse)

At 19:42, the moon began to shine again.

At 20:49, the moon walked out of the earth's umbra (round).

At 21:57, the lunar eclipse ends (penumbra ends).

The whole process lasted 5 hours and 57 minutes, of which the eclipse (the moon entering the umbra of the earth and being completely or partially obscured) lasted 3 hours and 40 minutes.

3. The observable area of the total lunar eclipse is also different because the time of moonrise is different in different places. The total lunar eclipse begins at 16:00 and can only be seen in areas where the moon comes out before 16:00.

The following is a diagram of the total lunar eclipse observation area on November 8.

There are a lot of lines drawn on it and marked with text. The first line is the beginning of penumbra eclipse. The moment when penumbra eclipse begins can be seen in the area above this line in our country. The second line is the initial loss, and only the region above this line in our country can see the moment when the initial loss begins.

For example, if you were in Guangzhou at that time, the moon in Guangzhou came out at 17:40, and the moon was already deficient, but it had not completely disappeared.

If you were in Qitaihe, Heilongjiang, and the moon came out at 15:45, before the eclipse began, you could see the whole journey.

If you happen to be on the initial loss line, the time of moonrise is 17:09, and the moon begins to be absent at the same time.

4. How to shoot the total lunar eclipse 1. The ordinary moon and the red moon you can photograph the ordinary moon before the moon disappears.

When the moon disappears completely, you can photograph the red moon. Due to the weak scattering ability of red light, there will still be a faint red light after the moon enters the earth's umbra, and this "blood moon" can be photographed by the camera after increasing the exposure.

two。 Lens focal length to take a clear picture of the moon, I think at least the equivalent focal length of 200mm, strictly speaking, 300mm equivalent above is enough to see, 400mm equivalent above is very good.

If you are shooting with a mobile phone, you need to have an optical zoom function, that is, the periscope telephoto lens on the phone. I think it takes a zoom of 5 times or more to make the moon big enough. Note that if your phone has a 5x zoom lens, use 5x, not 4.9 or 5.1 multiples. It's all digital zoom, and it's not clear.

3. Exposure parameters the moon is very bright, so when shooting the moon, we usually have to reduce the exposure to see the details of the moon. It is recommended that everyone use M manual, and the mobile phone uses professional mode to manually control the exposure.

First, before the eclipse begins, the full moon is of normal brightness. At this time, you can use the special parameter ISO200,F5.6-F8,1/500 seconds to shoot the full moon.

As the eclipse begins, the moon will become less and less bright, so you have to constantly adjust the parameters to increase the exposure.

After the moon has completely disappeared, you can still aim at the position of the moon and shoot the red moon using the parameters of ISO400-800jie F5.6-8 and shutter for 1-2 seconds.

The phone can use the parameters of ISO50-200and shutter 1max 200-1max 500.

Priority should be given to iso and shutter when adjusting parameters. A lower iso can ensure a better picture quality, and a short shutter time can prevent the photo from being blurred by hand shaking. When shooting the red moon, you need a tripod.

4. A common method of total lunar eclipse ① directly takes pictures of the moon

When shooting only one moon, make the moon big enough. If it is too small, it will appear monotonous, so you can try to add other elements or take multiple pictures of the moon to make a group photo.

② has a simple and beautiful prospect.

If you want to make the moon particularly large, you have to be very far from the foreground, and sometimes the shooting position needs to be a few kilometers from the foreground.

③ records the process of total lunar eclipse in the same position.

You can shoot the moon alone, record the shooting time, and finally make a group of pictures. At this time, each moon can be taken very large, and the composition can be very flexible.

It can also be fixed in one position, recording changes in the position of the moon in the sky. At this time, it is necessary to predict the trajectory of the moon, set aside space for composition, and do not make the moon particularly large.

This article is from the official account of Wechat: photography Research Society (ID:shoujiPhotography), by Zhang Xiaozhang.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.