GPS in Photography


What is a GPS system? How do I use it with my photographs?
Nikhil P Vyas, via email

GPS stands for Global Positioning System. The US Department of Defense had established a network of 24 orbiting satellites. These satellites continuously transmit radio signals that are analysed by a GPS receiver that help determine a user’s position. The GPS receiver identifies information such as latitude, longitude and altitude of a person to determine his exact location.

In terms of photography, a GPS system can be invaluable for a travel or street photographer. It can organise and classify photographs.

For example, a biologist can use GPS photography to supervise the locations of endangered species of plants and animals. The data that a GPS system analyses can be recorded onto the image file, thus helping the photographer sort his photographs based on the exact location that at which they were shot.

Most cameras today have an in-built GPS system.

Tags: Street Photography, better photography, Question of the Day, location, travel photography, GPS, January, 2009, Global Positioning System, latitude, longitude, altitude, biologist, Nikon P6000