Camera settings to eliminate/reduce LP gradients

Hi All,

I live in Bortle 8/9 skies with very heavy light pollution.

I generally shoot only NB images from my back garden (6nm filters and WO Star71 refractor) and use "Unity Gain" as the setting.

Is there a recommended setting to be used to reduce/eliminate the LP gradients appearing on my images?

Thank you

Sorry, we don't have good way to reduce it.