Problems with reflections/rainbows caused by bright stars (RASA 11", ASI6200MC, and Celestron LPF) (Dan Gallo)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 46 eps Ori · 48 sig Ori · 50 zet Ori · Alnilam · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · LBN 944 · LBN 946 · LBN 950 · LBN 953 · LBN 954 · LBN 958 · LBN 962 · LBN 965 · LBN 967 · LDN 1635 · LDN 1636 · NGC 2023 · NGC 2024 · Orion · Orion B · Part of the constellation Orion (Ori) · Sh2-277 · The star Alnilam (εOri) · And 3 more.

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Problems with reflections/rainbows caused by bright stars (RASA 11", ASI6200MC, and Celestron LPF)

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Problems with reflections/rainbows caused by bright stars (RASA 11", ASI6200MC, and Celestron LPF)

Since switching to a full frame ASI6200MC and the Celestron Light Pollution Imaging Filter for my RASA 11, I get a lot of rainbows in my images, most likely caused by internal reflections from bright stars. This image shows a few examples of this and I've highlighted the most obvious reflections.

Although the rainbows make my images look nice and colourful, I want to get rid of them! I'm looking to get some help and advice from the AstroBin community if possible, as I struggle to fix these issues in processing. Does anyone have any recommendations of how to fix these reflections - either in processing (e.g. in PixInsight), or by adjusting my imaging rig slightly. At the moment I just tend to use the "clone" tool in Lightroom or Photoshop to paint over the rainbows, but some images are difficult to fix due to the surrounding nebulosity.

I'm grateful for any suggestions! Thanks!

Celestron RASA

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Status	Advanced success
Started	...
Astrometry.net job	5351473
PixInsight job	S1OBYJHN8IOUDB0I98LZCQPJU3945ROO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m05s.22
RA (top/left)	05h35m31s.44
RA (top/right)	05h35m50s.69
RA (bottom/right)	05h44m39s.82
RA (bottom/left)	05h44m19s.32

Dec (center)	-02°34′15″.3
Dec (top/left)	-00°56′52″.4
Dec (top/right)	-04°14′46″.6
Dec (bottom/right)	-04°11′31″.5
Dec (bottom/left)	-00°53′39″.1

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Problems with reflections/rainbows caused by bright stars (RASA 11", ASI6200MC, and Celestron LPF)

Problems with reflections/rainbows caused by bright stars (RASA 11", ASI6200MC, and Celestron LPF)

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Problems with reflections/rainbows caused by bright stars (RASA 11", ASI6200MC, and Celestron LPF)

Problems with reflections/rainbows caused by bright stars (RASA 11", ASI6200MC, and Celestron LPF)

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