The White Light Image provides us all sorts of information about the Sun’s photosphere, from structure of sunspots, to faculae, as well as supergranulation.
Hydrogen - α Image
Above the Photosphere, there is a 2500km thick atmosphere called Chromosphere. Generally speaking, due to extremely high brightness of photosphere, ordinary solar telescopes are impossible to observe this layer. However, making use of Hydrogen-αfilter, behaviour of chromosphere could be observed clearly. Through observing chromosphere, except Sunspots, those vigorous solar activities like Prominence, Coronal Mass Ejection could be shown.
Calcium K image
Extreme magnetic activities always happen on solar surface. A Calcium-K filter lens helps us better understand how vigorous the magnetic field in different areas of sun surface and most importantly, areas surrounding sunspots.