Saturn tonight (28 June 2014)

行星、深空天體、星野攝影等
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Chanlunlun
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Saturn tonight (28 June 2014)

文章 Chanlunlun » 週日 29 6月, 2014 07:27

Telescope :- Celestron C-11 at f/25
Mount :- CPC1100 , reconstructed for full robotic controlled.

Camera set
Barlow lens :- TeleVue 2.5X powermate
Camera :- DBK21AU618

Capturing software :- SharpCap.
Resolution :- 640 x 480
Stacking software :- Registax 6.0

Exposure= 1/32 sec. for 7000 frames.
Brightness=33
Hue=183
Saturation=103
Gamma=106
Gain=983


Site :- QC robotic observatory , Causeway Bay.
Sky stability :- 4/10 (poor)
Sky transparency :- 7/10 (good)
附加檔案
Capture 6_28_2014 20_19_47_v6.jpg
Capture 6_28_2014 20_19_47_v6.jpg (144.54 KiB) 已瀏覽 1214 次

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kingyo
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文章 kingyo » 週日 29 6月, 2014 10:57

[Good Job]

其實想問下,
1) Sharp Cap係咪真係比IC Cap. 好用? 有咩唔同?
2) DBK21AU618 比DBK21AU04 既整體Performance 係咪真係好D??我想知既係....Cap的影像好D定係只係後期處理時可以處理得D?

金魚

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Eddy So
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文章 Eddy So » 週日 29 6月, 2014 21:40

[Good Job]

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lawrencemok
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文章 lawrencemok » 週日 29 6月, 2014 21:56

[Good Job]

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鄧登凳
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來自: 3rd planet of solar system

文章 鄧登凳 » 週日 29 6月, 2014 23:13

[Good Job]

Chanlunlun
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文章 Chanlunlun » 週一 30 6月, 2014 09:26

kingyo 寫:[Good Job]

其實想問下,
1) Sharp Cap係咪真係比IC Cap. 好用? 有咩唔同?
2) DBK21AU618 比DBK21AU04 既整體Performance 係咪真係好D??我想知既係....Cap的影像好D定係只係後期處理時可以處理得D?

金魚
The performance (in terms of available utitilies) of IC Cap. is much better than SharpCap. However the resource rerquirement of SharpCap is much less than IC Cap.

My telescope is robotic and is being manuvered from my home through internet, SharpCap is the only choice for planet shooting.

FireCap is also a good chopice but seems not handy and stable enough for robotic application (cannot accept multiple cameras)

The quality of the final photo does not depend on the capturing software. Image process software (such as Registax) may help a little but quality of final product mainly determined by aperture of telescope, sky stability, types of camera and sky transparency - i.e. the external factors.

If external factors are non-ideal, capturing and image processing software are only of little help.
最後由 Chanlunlun 於 週一 30 6月, 2014 09:35 編輯,總共編輯了 1 次。

Chanlunlun
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文章: 3847
註冊時間: 週四 09 10月, 2003 21:06

文章 Chanlunlun » 週一 30 6月, 2014 09:34

kingyo 寫:[Good Job]

其實想問下,
2) DBK21AU618 比DBK21AU04 既整體Performance 係咪真係好D??我想知既係....Cap的影像好D定係只係後期處理時可以處理得D?

金魚
Sorry, miss your second point.

DBK21AU618 is much better than DBK21AU04, due to the lower noise of the 618 CCD and its higher sensitivity.

Again I would like to stress that it's the raw data from teh camera that determines the image quality, image process could help only little, if the raw data is non-ideal.

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