A monopod, also called a unipod, is a single staff or pole used to help support cameras, binoculars, rifles or other precision instruments in the field.
Monopods are easier to transport and quicker to set up than conventional tripods, making them preferable for on-the-go (OTG) photography.
Because it confers less stability than a tripod, monopods may present difficulties when trying to get a good image with very low light photography, i.e. night time, and shots where you need a 100% stable camera for example shooting light trails or landscapes with extreme depth of field.
Walking sticks or "trekking poles" exist that have a 1/4"-20 threaded stud on the top of the handle, usually covered by a cap when not in use, allowing them to double as a camera monopod.
They allow you to shoot in portrait or landscape orientation, and angle your camera to adjust for any sloping of the monopod.
[6] Mounting the compass atop the jacob staff eliminates reading errors introduced by body movements, and permits the taking of more precise bearings to targets.
[7] Monopods known as finnsticks are also used to steady high-power (typically, 10× or more) binoculars to permit a clear view without shake or wobble introduced by the user's hand and body movements.