万众瞩目的超级蓝血月全食就要来了，今天中国星空摄影联盟为你分享拍摄技巧！
【手机摄影】
现在大家最常用的拍摄工具就是手机，那么手机拍摄时有什么需要注意的技巧呢？
1，调整焦距，将月亮拉到最近；
2，用手点击月亮，锁定对焦点；
3，将小太阳（曝光值）调到最低；
4，由于月亮暗淡，拍摄时手一定要稳住，或者使用小三脚架固定拍摄；
最后拍成来的画面大概是这个样子。
但想要拍摄那种大大的月亮，光靠手机自带的镜头可是不行的，这时需要使用望远镜。拍摄时将手机对准望远镜的目镜，然后锁定对焦点在月亮上就好了。
使用这种方法拍摄时有一定难度。因为一般的望远镜没有配上自动跟踪的赤道仪的话，月亮会在望远镜中移动很快，所以拍摄时要迅速，不然得不断调整望远镜。另外拍摄时由于手的不稳，也会让取景构图变得困难。
下面这张图，就是我将手机对着道布森望远镜拍摄的。望远镜的焦距达到900mm，所以月亮看起来特别大。
【相机拍摄】
要拍摄好的照片，还是需要使用相机才行。
如果使用单反相机，而没有望远镜的话，你可以用用200-300mm或者更长的镜头，这同样可以拍到清晰的月亮。拍摄时注意一定使用三脚架进行固定。
拍摄参数需要注意让曝光时间短一点，大概1-2秒内合适，否则月亮的移动就会让画面变得不清晰。ISO值可以使用400-1600，而光圈则在F5.6-F8为宜 。
另外由于单反相机像素很高，后期通过裁剪也可以让月亮变得很大。
另外除单反外，市面上还有一些数码相机带超变焦功能，这时直接将镜头伸到最长，对准月亮，调好焦和曝光值也可以进行拍摄。
【创意摄影】
下面还有一些创意的拍摄方法，比如记录月全食从初亏到复原的整个过程，那就需要长时间曝光拍摄了。下面这张照片就是累计3小时曝光合成的，你可以看到月亮由亮变暗，由白变红的整个过程。
注意，这样的照片可不是单张拍摄而成的哦，而是连续拍摄数小时的几百张照片叠加而成的。因为一般单张拍摄30秒，画面就可能过曝了，而多张叠加则没有这个问题。
拍摄时需要注意三脚架一定要稳固，不能在中途有任何移动。 拍摄参数固定才能完整的记录光线变化的全过程。
使用望远镜进行创意拍摄，可以看看这张由中国星空联盟摄影师王乐天拍摄的照片。画面叠加了数张连续的全食和偏食阶段的月亮，以展现地球本影弧状的边缘，以及月球切入本影的过程。
拍摄器材和参数是SKY ROVER裕众130ED APO ，尼康D700，ISO200，1/640秒、1/2秒、4秒等多张合成。
最后预祝天气晴朗，大家多多收获月全食大片！
The much anticipated super blue blood total lunar eclipse is coming today, China sky photography Alliance for you to share shooting techniques!
[mobile photography]
Now the most commonly used tool for shooting is the mobile phone, so what do you need to pay attention to when you take a mobile phone?
1, adjust the focal length, pull the moon to the nearest;
2, click on the moon by hand and lock the focus to the focus.
3, the small sun (exposure value) to the minimum;
4, because the moon is dim, the hand must be stable when shooting, or use a small tripod to fix it.
The final picture is probably the same.
But if you want to shoot that big moon, you can't do it on your mobile phone. You need to use a telescope. Shoot the cell phone at the telescope's eyepiece and lock the focus on the moon.
It is difficult to use this method to shoot. Because the telescope doesn't match the automatic tracking equator, the moon will move very fast in the telescope, so we need to adjust the telescope quickly when shooting. In addition, due to the instability of the hand, it also makes the composition of the scene difficult.
The following picture is my mobile phone to the Dobson telescope. The telescope has a focal length of 900mm, so the moon looks very large.
[camera shooting]
If you want to take a good picture, you need to use a camera.
If you use a SLR camera without a telescope, you can use a 200-300mm or longer lens, which can also make a clear moon. When shooting, pay attention to the use of three feet to fix.
The shooting parameters need to be taken care to make the exposure a little shorter, about 1-2 seconds, or the movement of the moon will make the picture less clear. The ISO value can be used for 400-1600, while the aperture is suitable for F5.6-F8.
In addition, because the pixel of the SLR camera is very high, the later cutting can make the moon very big.
In addition to the single reflex, there are still some digital cameras with super zoom function on the market, which will directly extend the lens to the longest, aiming at the moon, adjusting the focal and exposure values, and shooting.
[creative photography]
Here are some creative shooting methods, such as records recovered from early losses to the total lunar eclipse of the whole process, it needs long time exposure. The following photo is a total of 3 hours of exposure. You can see the whole process of the moon from bright to dark, from white to red.
Note that the picture is not a single shot, but a couple of hundreds of photos that have been photographed for several hours. Because the ordinary single shot 30 seconds, the picture may be overexposed, and multiple overlay is not the problem.
When shooting, it is necessary to note that the three scaffold must be stable and can not have any movement in the midway. The whole process of recording the change of light is complete when the parameters are fixed.
Using a telescope for creative photography, look at the picture taken by Wang Letian, a Chinese Star Alliance photographer. The number of consecutive images superimposed on both total and partial phases of the moon, in order to show the earth's umbra arc edge, and the moon Benying starting process.
The shooting equipment and parameters are SKY ROVER Yuzhong 130ED APO, Nikon D700, ISO200, 1/640 seconds, 1/2 seconds, 4 seconds and so on.
I wish the weather is sunny, we can harvest a large total lunar eclipse!