Colour calibration with filters

[philh]

Hi Im using an 8 inch celestron with hyperstar lens, zw0 1600 colour camera and light pollution filters ( as I live in a light polluted city). When I try the colour calibration the background goes crazy. I get a green background on one filter and a red one on the other. Is there a way to do the colour calibration such that Pixinsihgt knows you are using  filter and compensates. What suggestions are there for getting the right colour in these cases? or should I just miss this step when using filters?

[pfile]

your background tolerance level might be set wrong. you can experiment with the BackgroundNeutralization process to find the right tolerance value. when you have found a tolerance large enough the background of the image after BN (and a channel-locked STF application) should be black/grey.

rob