LRGB alignment

[astrodoc71]

The tutorials I have seen thus far show alignment of RGB files separate from luminance, then aligning the resulting RGB to the luminance. Why don't you register all 4 channels at once? Seems to me by registering RGB, then re-registering the RGB to the luminance you are introducing another correction that affects the data more than doing all at once? Just wondering
Thanks
Dave

[lucchett]

Agree, one alignment step is better
Andrea

[Josh Lake]

If you use Batch PreProcessing, it will do them all at once, aligned to one reference frame.