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Old 21-02-2021, 10:22 AM
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pkinchington (Peter (Kanga))
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Eta Carina Nebula (stars acceptable?)

I have been photographing eta carina because it is relatively bright and I am able to use my unmodified mirrorless camera without a cls filter in my suburban backyard. I like this combination because it gives me a colour profile that I like. My question is are the stars of an acceptable shape given my tracking is not ideal?
Cheers Kanga
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Old 21-02-2021, 10:56 AM
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PKay (Peter)
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Nice one Kanga.

The 3rd star on the bottom right up 10 is a little wonky, but otherwise it's a great image
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Old 21-02-2021, 11:05 AM
glend (Glen)
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Star are ok, imho. What scope are you using? And if anything, the focus is a little off, but it could just be the low quality of the big you uploaded, a bit fuzzy.
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Old 21-02-2021, 11:50 AM
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Nice effort Kanga.

With such a wide field in such a star dense region , star irregularities can be quite hard to see. From what I can see the bottom left seems to be trailing. It’s the only corner I can see it in though so I wouldn’t suggest tracking is the issue there. It’s more likely to be a tilt issue.

A great effort though. Well done

Ryan
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Old 21-02-2021, 02:42 PM
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Quote:
Originally Posted by RyanJones View Post
Nice effort Kanga.

With such a wide field in such a star dense region , star irregularities can be quite hard to see. From what I can see the bottom left seems to be trailing. It’s the only corner I can see it in though so I wouldn’t suggest tracking is the issue there. It’s more likely to be a tilt issue.

A great effort though. Well done

Ryan

Hi Ryan,
It indeed may be tilt -since I damaged my mount and had to flatten it by hand (& hammer). Also I do not think my flattener covers a full (35mm) frame camera.
Cheers Kanga
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Old 21-02-2021, 02:55 PM
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Originally Posted by PKay View Post
Nice one Kanga.

The 3rd star on the bottom right up 10 is a little wonky, but otherwise it's a great image
Thanks for the feedback.
Cheers Kanga
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Old 21-02-2021, 04:00 PM
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Star are ok, imho. What scope are you using? And if anything, the focus is a little off, but it could just be the low quality of the big you uploaded, a bit fuzzy.
Hi Glen,
I used an 80ed doublet 560mm with 1x field flattener.
Cheers Kanga
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Old 21-02-2021, 04:32 PM
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It looks like you have a bit of tilt towards the bottom left. You could always crop it a little bit there is plenty of interesting stuff that would be left in the field of view.
Great image and the colors are fantastic.
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Old 21-02-2021, 08:53 PM
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It looks like you have a bit of tilt towards the bottom left. You could always crop it a little bit there is plenty of interesting stuff that would be left in the field of view.
Great image and the colors are fantastic.

Glad you like the colours. I will crop it a bit more.
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Old 22-02-2021, 09:48 AM
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Star are ok, imho. What scope are you using? And if anything, the focus is a little off, but it could just be the low quality of the big you uploaded, a bit fuzzy.
Hi Glen,
I think the "fuzziness" you see is the luminosity layer I added. For your info. I have attached an image without the luminosity layer.
Cheers Kanga
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Old 22-02-2021, 10:11 AM
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Hi Glen,
I think the "fuzziness" you see is the luminosity layer I added. For your info. I have attached an image without the luminosity layer.
Cheers Kanga
Much clearer, imho. Thanks.
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