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PixInsight

YouTube Tutorial

Pixinsight is a powerful; tool that seems intimidating at first-- I have outlined the first basic processes to give you amazing results immediately.After you apply these first few steps save as a "tif", chooseing "Save As" then selecting "File Type" from the popdown save menu-- then you can open it in Adobe CC or lightroom.

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First you need to open your stack (from DSS). in Pixinsight then do not autostretch yet. you can make a duplicate (clone), by right clicking to auto stretch. Choose "Image" if the menu bar then autostretch then crop the original image using "dynamic crop" in "Process" menu bar choose "all processes”.

After you crop the black borders out (from stacking) choose what looks like a piece of paper above in the tools area (this is the only way i know how to easily "Preview Sample"). "Preview in Pixinsight is for sampling areas.

You first need to sample the background area. This is a tiny area. Use the zoom tool and zoom in on an area with NO stars or nebula material. create a tiny square using your mouse. Then zoom out and choose 99% of the area with the preview tool to sample all the bright stars. Now two preview samples have been created.

Now choose "color calibration in the "process" tab Choose "background extraction". A menu pops up Open menu, another menu pops up chose open then select "Preview sample 01" choose "apply" now close that menu and open "color calibration in the Process tab. on the top open the file icon and choose "preview 02 then on the bottom open the little folder and choose "preview 01" then execute. You can now get rid of the awful Green-- Open "Process" choose "all processes" find SCNR open the execute. Only now can you "Autostretch" your image. The next process will be "Dynamic Background extraction. The Photometric calibration.

Ill make a simple video tutorial to accompany this

Dynamic Background Extraction

 

This is the solution to light pollution and some culmination issues manifest from using a dslr camera in Pixinsight-- "Dynamic background Extraction". You have to scrub the image choosing areas with No black dots (stars). This works really well. This should be carried out after dynamic crop (to get rid of black orders from stacking, then "background neutralization, (which means you have to preview sample the background and the light area), then color calibration. I use the photometric color calibration only after dynamic background extraction. Use these tutorials:

Light Vortex tutorial

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