I presume if you use a hydrogen alpha filter with my ASI2600 MC you need new flats but not darks or bias. Is that correct? Unfiltered darks and bias would be the same as filtered darks and bias frames?
maplearn Unfiltered darks and bias would be the same as filtered darks and bias frames?
bias is the same. When the temperature and exposure time are the same, the dark field is also the same