The pentax o gps1 gps unit is designed for use with pentax digital slr cameras it not only provides basic location data but also offers an array of original features that allow users to effortless track and record details of their favourite photographic locations by simply mounting the o gps1 onto the hotshoe of a pentax digital slr camera users can record the latitude longitude altitude universal time coordinated utc and aspect of the location they are shooting directly onto each image