We've all seen wobbly videos where there is shaking. And it is not an earthquake video.
A tripod is used to attached to a recording device in order to keep the device stable. For our purposes this means that the video can be recorded without shakes or waves. It allows the viewer to concentrate on what is being recorded.
There are tripods designed for photography and for video. The photography one are inexpensive but are not so good at allowing pans and gradual movement.
Tripod come in different sizes; from table top to person height and beyond. The larger ones are a pain to carry but used correctly a tripod can really improve the quality of your video.
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