自制月亮滤镜（翻译自国外同好文章）
Home made Moon filter（自制月亮滤镜）原帖：http://www.astronomyforum.net/telescope-accessories-forum/93263-home-made-moon-filter.html
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）
http://pic.yupoo.com/liqisuccess/166588de18a1/medium.jpg
Gave a push from inside and it came out!（将上面的小盖子取下）
http://pic.yupoo.com/liqisuccess/855758de18a2/medium.jpg
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）
http://pic.yupoo.com/liqisuccess/161338de18a2/medium.jpg
http://pic.yupoo.com/liqisuccess/959458de18a4/medium.jpg
Now only to fit the filter ring onto the dust cap. TACK-IT removable adhesive did the job.（将滤镜嵌入到明胶滤色镜过滤圈中后，将移动胶粘剂涂抹到过滤圈上，再粘到望远镜防尘盖上）
http://pic.yupoo.com/liqisuccess/731508de18a5/medium.jpg
And Moon Filter is readyhttp://www.astronomyforum.net/images/smilies/happy3.gif。（到此为止，月亮滤镜就OK了）
http://pic.yupoo.com/liqisuccess/901678de18a2/medium.jpg
翻译的比较拙劣，大家将就看吧，欢迎指正
顺便弱弱的问一下80A和ND滤镜是什么？::070821_01.jpg:: 好知识。。。。。。。。。。。 不错::42::::42:: 学习了，帮顶::070821_09.jpg::
页:
[1]