Difference between 4p aerial camera and 2p aerial camera

The difference between 4p aerial camera and 2p aerial camera is as follows:

2P means that the shielding layer of coaxial cable consists of two layers, namely aluminum foil layer and aluminum-magnesium alloy braided mesh layer; 4P refers to a four-layer shielded cable, that is, the shielding layer consists of two layers of aluminum foil and two layers of aluminum-magnesium alloy woven net. Four-shielded cable has good anti-interference ability and is generally used in areas where two-way business is carried out to reduce the interference of external noise signals and improve the carrier-to-noise ratio. Aerial photography, also known as aerial photography or aerial photography, refers to shooting the earth's landforms from the air to get a top view.

The aerial camera can be controlled by the photographer, and can also be automatically photographed or remotely controlled. The platforms used in aerial photography include airplane models, airplanes, helicopters, hot air balloons, small spacecraft, rockets, kites and parachutes. In order to make aerial photos stable, advanced photographic equipment such as Spacecam is sometimes used, and the stable function of three-axis gyroscope can be used to provide high-quality stable images even under long focal length lenses. Aerial photography can clearly show the geographical form, so it is not only a part of photography art, but also used in military affairs, traffic construction, water conservancy projects, ecological research, urban planning and so on.