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Chromatic challenge....

  • dmcdona
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18 years 6 months ago #29630 by dmcdona
Replied by dmcdona on topic Re: Chromatic challenge....
Seanie

although the DSI is a colour imager, it seems that without the IR filter red just gets everywhere. Also, red is not 'registerd' properly. If you look at the Ring, you'll see that the bright stars have red 'bleed' on them.

So, for each image, I have to spilt it into three colour planes, register each colour and then reduce the red frame. Then recombine them. Multiply this 30+ times and its a real pain.

The overall result is reddish images with red bleed on them And of course, some blurring too. Unfortunately, I think its the best I can do with a $300 imager :cry:

The ring was a little overexposed simply to bring out more detail in the core and some of the fainter stars. I think most folks here preferred my first version of M57 (in greyscale) because I got both faint background stars and the detail in the nebula. But it was the second less favoured image that I did the colour processing on.

I appreciate the feedback but I guess I just need to get a better imager to make another leap of quality... :D

Cheers

Dave

ps - why are you cowering?

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18 years 6 months ago #29635 by Seanie_Morris
Replied by Seanie_Morris on topic Re: Chromatic challenge....

ps - why are you cowering?


I case you were going to hit me, with the only negative feedback thread! :P

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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18 years 6 months ago #29637 by dmcdona
Replied by dmcdona on topic Re: Chromatic challenge....
All feedback greatly accepted! As long as its constructive, I don't mind it being negative at all in fact, that's the best kind - I can always do better :D

Dave

ps - where's your cat? Guess again... :wink:

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18 years 6 months ago #29641 by Seanie_Morris
Replied by Seanie_Morris on topic Re: Chromatic challenge....

ps - where's your cat? Guess again... :wink:


He's looking down on you Dave - from a safe distance! :D


Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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18 years 6 months ago #29642 by dmcdona
Replied by dmcdona on topic Re: Chromatic challenge....
:lol: :lol: :lol:

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