I was just looking at this picture : and wondered why no Corona
or trace of the little explosions on the surface of the Sun are
visible ... How should the Sun be photographed to see those
details on its surface ? It's because that image is only
capturing the visible spectrum. Most of the images you see of
the sun are capturing the ultraviolet spectrum, where you see
some really impressive explosions and coronal ejections: That
image was taken from space with a highly specialised scientific
camera, but you can capture some details, including prominences
using a DSLR in conjunction with an appropriate filter: image
(c) Kevin Lewis, source:
http://www.photosbykev.com/wordpress/photography/pst-solar-
imaging/ The filter used in this case was an Hα filter, designed
to let through the frequency of light produced when an electron
in a hydrogen atom changes energy state (it would be an
understatement to say that there are a lot of hydrogen atoms in
the sun). Note this is a multi exposure image with one exposure
for th