NGC 3372 Carina Nebula Eastern Region SHO data to Visual Spectrum Synthetic LRGB

[Startrek]

Here’s another version of my Carina Nebula image using the SHO data set and processing a Visual Spectrum Synthetic LRGB image.

Processing in Startools using Compose Module …..,

SHO data set to Visual Spectrum Synthetic LRGB

Open Compose

Set Luminance Color to L + Synthetic L from RGB, Mono

Create a Luminance channel by loading Sii into R , Ha into G and Oiii into B

Press Keep then Linear then Save into your nominated location and save as a tiff file ( eg: SHO Luminance.tiff )

Close Compose

Open Compose

Set Luminance Color to L + Synthetic L from RGB, Mono

Create a Red channel ( Sii + Ha ) by loading Sii into R, load Ha into G

Press Keep then Linear then Save into your nominated location and save as tiff file ( eg: Red Sii +Ha.tiff )

Close Compose

Open Compose

Set Luminance Color to L, RGB

Load saved SHO Luminance file into Luminance channel

Load saved Red Sii + Ha file into Red channel

Load existing Oiii file into Green channel

Load existing Oiii into Blue channel

Press Keep then Linear

Open AutoDev or Film Dev and process as normal

When you hit the Colour module select the following -

Style - Artistic Not Detail Aware

LRGB Method Emulation - RGB Ratio CieLab Luminance Retention

Adjust saturation and colour bias to taste. It’s a nice option to process an alternative synthetic broadband image.

Astrobin link for full resolution……,

https://www.astrobin.com/full/dye7q4/B/

NB: This image is presented as documentary astrophotography and has not used any AI enhanced or AI assisted technology during post processing.

Thanks for Looking
Comments Welcome

Martin