Members of the facebook group “Indian Amateur Astrophotographer ” upload one RAW image to be processed by other members. This helps everyone learn and share the art of processing astro images. This is my small contribution to the group on how i processed this particular image of the Lagoon and Trifid nebula using Photoshop CC.
The above image was taken by Subhankar Saha, Renganathan Venketesan and Dr. Suresh Mohan on a hot summer night from Yelagiri. The night temp was 29c on may 30th and they forgot finder scope, after some gimmicks they got a star centred and did the GOTO. This is 2 hr exposure from yelagiri at ISO 800x 10 minutes. The image was shot using Canon 500D modified, Takahashi FSQ85 at f 5.3.
I’ve used basic curves and level adjustment along with some masking techniques, colour balance and camera raw filter.
Here is a before and after comparison. Before is the RAW stacked image and later is the processed version. This shows that when you stack images and end up with a dark dull image, do not be disappointed. The image data is all there it’s a matter of post processing and pulling out the details. I’ve been through this and trust me, you get really disappointed when you see a dark image with nothing.
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Image / Data Credits: Subhankar Saha, Renganathan Venketesan and Dr. Suresh Mohan (Members of Indian Amateur Astrophotographer FB Group)