Was wondering if the 80A or ND filter I have in my camera kit is the one used for reducing the moon's brightness. A search in the net confirmed it to be 80A. （考虑相机配套元件中的80A或者ND滤镜是否有消除月亮亮度的作用，经过在网上查找，确定80A可以用作月亮滤镜）
Remembered I have 80A in my camera kit. 55mm diameter. Now how to make use of the 80A I have?
（相机配套元件中80A滤镜口径55mm）
步骤：
The dust cap of the scope seemed to have a smaller cap（望远镜防尘盖上面有个小的盖子）
The filter could not be fitted as it was exactly of the same diameter. Ha, I have a filter ring (for gelatin filter) and 80A can be threaded on to it.(滤镜和小盖的尺寸不同，但是可以嵌入到我的明胶滤色镜的过滤圈中）
置顶卡
变色卡
千斤顶
显身卡
