cytan - 2023-05-27

Hi Han,
I use a EL flat source and to my eye, the EL looks white. However, during stacking, ASTAP gives the following warning:

"Warning flat pixel colour values differ too much. Use white light for OSC flats!!. Will compensate accordingly".

So what does this warning actually mean to the correction of my lights? And what does ASTAP do for compensation?

Download the master flat that I am using here:

https://1drv.ms/u/s!ApsRFMpkd9cwjzxafmghevFE6odB?e=S9wSoV

This comes from an ASI2600MC without any filters.

Any info greatly appreciated

cytan