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FS: CaK filter

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發表於 2012-10-24 14:39:31 | 顯示全部樓層 |閱讀模式
Acquired from ebay from a non-astronomical filter manufacturer, narrower bandwidth than Baader CaK.

Mounted in a C-mount cell, together with a 77mm blue filter serving as an ERF.  

This combination must be used with a Baader filter.

Asked for $500 HKD only, sample shots:

20120514-1446.jpg 20120604-1454.jpg 20120714-1519.jpg 20120714-1521.jpg 20120514-1443-1444.jpg
發表於 2012-10-24 20:35:07 | 顯示全部樓層
新手好奇問下甚麼叫Mounted in a C-mount cell, together with a 77mm blue filter serving as an ERF.
 樓主| 發表於 2012-10-24 20:53:44 | 顯示全部樓層
塊 filter 接口係 C-mount, 好多 CCTV 或者工業用 video camera 都係呢種接口

ERF = Energy Rejection Filter.
 樓主| 發表於 2012-10-24 21:12:40 | 顯示全部樓層
Reserved.
 樓主| 發表於 2012-10-26 14:24:07 | 顯示全部樓層
SOLD.
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