Olympus UK E-System User Group
Olympus UK E-System User Group

Join our unique resource for Olympus Four Thirds E-System DSLR and Pen and OM-D Micro Four Thirds photographers. Show your images via our free e-group photo gallery. Please read the e-group.uk.net forum terms and conditions before posting for the first time. Above all, welcome!


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Foto Fair Post your photos for friendly, non-critical feedback. This is the place to show pictures if you aren't yet ready for full-blooded critique, or simply want to share an interesting picture with other e-group visitors.

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  #121  
Old 4th November 2016
birdboy birdboy is offline
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Re: Astro Photos

I've had another go with Andromeda M31 and using Pixinsight to stack and Startools to process. This is 320 60sec 300mm f4 ISO1600 frames worth

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  #122  
Old 4th November 2016
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Re: Astro Photos

Nice work John
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  #123  
Old 4th November 2016
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Re: Astro Photos

[QUOTE=birdboy;397554]I've had another go with Andromeda M31 and using Pixinsight to stack and Startools to process. This is 320 60sec 300mm f4 ISO1600 frames worth

Very nice indeed.
Thats a lot of exposure time but it certainly pays off.
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  #124  
Old 4th November 2016
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Re: Astro Photos

very nice.... all it takes is....time
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  #125  
Old 4th November 2016
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Re: Astro Photos

From the comfort of my favourite armchair all I can say is - With a result like that, the time ( just over 5 hours )was well spent.

Thanks for sharing.
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  #126  
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Re: Astro Photos

Thanks for your comments. Unfortunately the time spent capturing the raw images was a fraction of the time that it took to process them, but I was on a learning curve. I found out that if you use DSS 3.3.4 it does not change the white balance (good for ST) and it stacks them at a fraction of the time that Pixinsight takes. DSS also works out any rotated frames whereas Pixinsight does not. My other learning was that it does improve the processing if you take darks bias and flat frames. I think this is necessary if you do not use Photoshop to process the images. Next I am going to try a light pollution suppression filter on the end of the lens.
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  #127  
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Re: Astro Photos

Quote:
Originally Posted by birdboy View Post
Thanks for your comments. Unfortunately the time spent capturing the raw images was a fraction of the time that it took to process them, but I was on a learning curve. I found out that if you use DSS 3.3.4 it does not change the white balance (good for ST) and it stacks them at a fraction of the time that Pixinsight takes. DSS also works out any rotated frames whereas Pixinsight does not. My other learning was that it does improve the processing if you take darks bias and flat frames. I think this is necessary if you do not use Photoshop to process the images. Next I am going to try a light pollution suppression filter on the end of the lens.
I know it takes a long....long time for Pixinsight to do the whole alignment and stacking process.

I think there is a setting in Pixinsight to stop it changing anything from the RAW image including stopping it changing white balance. Its called Pure Raw. You do have to debayer the images though yourself just before doing the actual stacking to get the colour back. Its explained in Section 1 here :-

http://www.lightvortexastronomy.com/...ixinsight.html
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  #128  
Old 4th November 2016
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Re: Astro Photos

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Originally Posted by wornish View Post
I know it takes a long....long time for Pixinsight to do the whole alignment and stacking process.

I think there is a setting in Pixinsight to stop it changing anything from the RAW image including stopping it changing white balance. Its called Pure Raw. You do have to debayer the images though yourself just before doing the actual stacking to get the colour back. Its explained in Section 1 here :-

http://www.lightvortexastronomy.com/...ixinsight.html
Thanks for the link Dave I'll have a study of it tonight as its raining here. I did have huge problems with the BPP and it not debayering so everything had to be done from separate processes. What a memory gobbler PI is if you don't delete the intermediate files. I do not think I will be getting PI as I do not feel it is offering a significant improvement over DSS and ST, but I have not mastered the basics yet, so its my lack of skills to use the tools not the software.
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  #129  
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Re: Astro Photos

I tend to agree with you. I wish I had persevered a bit more with Star Tools in demo mode before splashing out on PI. That said PI does have some plus points as well. Never satisfied.
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  #130  
Old 4th November 2016
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Re: Astro Photos

Quote:
Originally Posted by birdboy View Post
Thanks for the link Dave I'll have a study of it tonight as its raining here. I did have huge problems with the BPP and it not debayering so everything had to be done from separate processes. What a memory gobbler PI is if you don't delete the intermediate files. I do not think I will be getting PI as I do not feel it is offering a significant improvement over DSS and ST, but I have not mastered the basics yet, so its my lack of skills to use the tools not the software.
If time allows, try your subs through Astro Art

Sent from my Nexus 7 using Tapatalk
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  #131  
Old 4th November 2016
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Re: Astro Photos

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Originally Posted by crimbo View Post
If time allows, try your subs through Astro Art

Sent from my Nexus 7 using Tapatalk
Hi Chris I have had a look at Astroart and am struggling to get my process right. I only have Darks Bias Flat and Light frames. The calibration requires flat dark frames which I do not understand.

Do you have an idiots quick guide workflow on how to use this software?
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  #132  
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Re: Astro Photos

must admit I have been quick and dirty and ju st put in what I have got and let it run
The interesting bit is the curves

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  #133  
Old 5th November 2016
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Re: Astro Photos

Wow super shot.

Wee Man
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  #134  
Old 6th November 2016
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Re: Astro Photos

I agree Ed it's a belter. Well done John.
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  #135  
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Re: Astro Photos

Stayed up late last night as just took delivery of a 77mm IDAS D1 Light Pollution Suppression Filter, only ordered it Friday. Well done FLO. Had a go at the Flaming Star Nebula IC405. Its about 1500 light year from earth and about 5 light years across

Did a lot of research on filters and first impressions are it works for me in my yellow light polluted back garden. The effect was visible using the histogram with the red shifted significantly to the left. I was concerned it may bandpass the visible bits I wanted but no it does not appear to.

Will have another go at the heart and soul nebula next.

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