Flats, Bias and Darks.

Forums Spectroscopy strange Hb in Be (48 Per)? Flats, Bias and Darks.

Tony Rodda

Some great discussion on frame calibration.

Quick questions:

Does a Dark not contain Bias, by definition?

As in, we already use flat-darks in ISIS Masters and indeed have that option for photometry in AIP4WIN?

The latter allows a fixed offset/Bias value.