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Old 13-10-2020, 06:49 PM
stephen2615 (Stephen)
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stephen2615 is offline
 
Join Date: Feb 2011
Location: Canberra, Australia
Posts: 70
Blue tinge when combining narrowband

Greetings,

For some reason, I have a blue tinge when combining my narrowband images before doing anything to them other than combining. This happens in PixInsight (SHO) or in Photoshop. I can remove it when doing PI DBE but it sort of messes up the colours in general and ends up with more of one colour than there should be. Eg, too much blue in M16 and too much red/pink in Helix Nebula. I am relatively new to Narrowband processing. My filters are Optolong 7 nm and my flats look good. My Sii stack is surprisingly bright and looks blurry (even though it isn't) when imaging the Helix Nebula. The stacked images look good so I just can't determine why this is happening.

Any hints or comments would be very welcome.

Regards

Stephen
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