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Low Cost CaK filter

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發表於 2012-4-30 21:25:18 | 顯示全部樓層 |閱讀模式
I've bought a low cost CaK filter which has narrower bandwidth than Baader CaK.

Here is a side-by-side comparison with a simple 80A blue filter:

20120430-1457-1459.jpg
發表於 2012-5-2 07:45:57 | 顯示全部樓層
Looks good. Details enhanced!
發表於 2012-5-3 12:21:16 | 顯示全部樓層
I've bought a low cost CaK filter which has narrower bandwidth than Baader CaK.

Here is a side-by-s ...
oldfield 發表於 2012-4-30 21:25


Where did you buy it?

pts
 樓主| 發表於 2012-5-3 12:35:47 | 顯示全部樓層
ebay, omega optical.
 樓主| 發表於 2012-5-7 15:23:42 | 顯示全部樓層
two more shots taken today, with Baader 3.8 + CaK, 70mm aperture.

20120507-1405-2x.jpg

20120507-1408-2x.jpg
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