Eta Carinae

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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weixing
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Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
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Eta Carinae

Post by weixing »

Hi,
Another image taken from 11 - 12 Feb 2005 observation session using my Sky-Watcher 150 F5 Newtonian and Canon 300D:
http://www.singastro.org/album_pic.php?pic_id=366

I think I accidentally kick the tripod :oops: , so the tracking is off. To reduce the star trails (Packing up, so no time and too lazy to redo polar alignment), so I used ISO 1600... a bad choice... won't do that again next time. :P

Anyway, after compare all my images to those produce by our expert here (TG, Matthew, JY, Kochu & etc), I think all my images appear more blueish and most of my red components are lost.... I think due to the way I do noise reduction in photoshop... will try a different approach or software.

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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kochu
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Eta Carena

Post by kochu »

Hi Weixing,

Good.I see that you got a new 300 D. New CNY purchase?
Shot has come out well. Don't bother about the back ground stars much. Keep up the good work.
BTW ISO 1600 is not a bad choice as you seem to think.I think it is quite tolerable with 300 D
The lack of red component will be there till you take the bold step of modifying the 300 D.

Kochu/13-2-05
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acc
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Post by acc »

Here's a firmware hack to release crippled features on the 300D

http://satinfo.narod.ru/en/

Use at ur own risk... :twisted:
We do it in the dark...
Portaball 12.5"
Takahashi Mewlon 210
William Optics 110ED
...and all night long!
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weixing
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Post by weixing »

Hi,
Here's a firmware hack to release crippled features on the 300D

http://satinfo.narod.ru/en/

Use at ur own risk...
Already install for quite sometime.... hee hee :mrgreen:
BTW ISO 1600 is not a bad choice as you seem to think.I think it is quite tolerable with 300 D
The lack of red component will be there till you take the bold step of modifying the 300 D.
I won't do that modification (remove the IR filter), since I'll be using it for normal photography. Heard that you won't be able to get an accurate auto-focusing and white balance after you remove it even you put an external IR filter.

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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astro
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Post by astro »

weixing wrote: I won't do that modification (remove the IR filter), since I'll be using it for normal photography. Heard that you won't be able to get an accurate auto-focusing and white balance after you remove it even you put an external IR filter. Have a nice day.
Well then, there's a good excuse now for you to get your hands on the new Canon 20Da :lol:
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