Camera

The Astrosoc has a Canon EOS 350D digital SLR. This model is quite popular for astrophotography, though it is no longer in production (current equivalents are the 450D/500D range usually around £400-£700).
Specifications (relevant to astrophotography):

Lens

We also possess a 50mm (focal length) Canon EF lens. It has a wide field of view, making it suitable for constellation and star trail photography (and occasional group photos during obs meetings!).

Tripod

A basic adjustable tripod with panning control, which can be used for star trails or for photographing objects such as meteors.

Adapter

This is a device which connects the camera's lens mount directly to the 1.25" eyepiece of a telescope, usually the Nexxie. It is adjustable for various focal lengths.

Cable release

Last but by no means least, this is absolutely essential for preventing judder of the equipment when taking exposures. It is a handset enabling control of the camera's shutter via a connecting wire, hence the name. Used regardless of whether the camera is mounted on the tripod or a telescope.