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MarsG76

Visiting the Lagoon...

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Hello Astro people...

 

I'm slowly I'm getting through my captured data from April, June & July as time permits. Now it was the turn to process my Lagoon data...

This one is the Lagoon Nebula in natural color.... It's only about 2 hours worth of 2, 3 & 7.5 minute subs at ISO1600 using my Canon 40D.

 

I usually imaged at ISO800, but with is one, and the other two on the same night, I decided to give ISO1600 a go to see whether there will be more noise when comparing to ISO800... The result is that there isn't, it looks every bit as clean as my ISO800 exposures, except with the added benefit of half of the time being spent on exposure...

 

Clear Skies,

MG

 

IMG_4964.JPG

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1 hour ago, celestron8g8 said:

Great capture ! Upside-down for me but still very nice ! 

"Upside-Down"??? No such thing in space... ?

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That’s great! I can even see the creature swimming in the centre of it! Well done! :) 

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That’s a very nice, natural looking capture. ?

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Color balanced the blackness of space to a neutral color... original upload had space that was slightly red...

IMG_4996.JPG

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Did you see much loss of colour shooting at 1600?  I’ve been recently shooting at 800 but might go back to 1600. 

 

Lovely image ??

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17 minutes ago, tooth_dr said:

Did you see much loss of colour shooting at 1600?  I’ve been recently shooting at 800 but might go back to 1600. 

 

Lovely image ??

No, not at all, even the noise levels were no worse at ISO1600...  I'm going to be exposing at ISO1600 from now on, half the exposure time or fainter matter for the same exposure time...

I think that the 40D must be gain neutral at ISO800-1600.

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10 minutes ago, MarsG76 said:

No, not at all, even the noise levels were no worse at ISO1600...  I'm going to be exposing at ISO1600 from now on, half the exposure time or fainter matter for the same exposure time...

I think that the 40D must be gain neutral at ISO800-1600.

I’ll stick with it myself too. 

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    • By MarsG76
      The Lagoon Nebula (Messier 8, M8 or NGC 6523) is a emission nebula in the constellation Sagittarius, and is estimated to be between 4,000-6,000 light-years from the Earth. This image was taken with a full spectrum modded DSLR through a 80mm refractor for a total exposure time of 1002 minutes through SII, HAlpha and OIII filters.
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