What digital cameras are
suitable for taking wide field celestial photography with the
It is essential that a digital camera for
astrophotography has the ability of opening a shutter for a long
period of time and setting a focus at infinity.
Use of a DSLR camera (digital camera with interchangeable
photographic lens), which has functions to control the focus,
shutter exposure times and lens apertures manually, is recommended.
What equipment is required besides the
A stable camera tripod and a ball head adapter, on which
to attach the camera to the Polarie, are required. In addition, a
shutter release (remote) cable is needed to avoid vibration.
What photographic lenses are suitable for
Generally it is advisable to use a wide-angle
photographic lens. The wide-angle photographic lens offers a wide
frame and it is suitable for taking photos of whole constellations
and the Milky Way. With the longer shutter exposure, star trails are
less conspicuous in the wide frame of the wide-angle photographic
lens even if the polar setting of the Polarie is not precise. The
longer the focal length of a photographic lens, the shorter the
exposure time that allows pinpoints star images. As a result, more
accurate polar setting is required when using a telephoto lens.