For photographers constantly on the go, the&nba; Canon GPS receiver gp-e1 is a convenient tool to enhance organization of stock photos. Used exclusively with the EOS-1D x, the gp-e1 is a compact and durable accessory that automatically appends accurate geographical coordinates and cardinal points as exif data for both images and videos.Features: rugged, compact design - to be able to endure a photographer's travels, Canon designed the gp-e1 to share the same rugged and durable exterior construction as the EOS-1D x without adding additional bulk. Incredibly lightweight, this receiver integrates seamlessly with the camera's extension system terminal, allowing the Hot shoe to remain accessible while powered by the main camera unit. Able to withstand harsh weather conditions, The gp-e1 is a great enhancement to the EOS-1D x for those who wish to take their EOS system out into even the most remote environments.Identification of coordinates & cardinal direction - to be able to endure a photographer's travels, Canon designed the gp-e1 to share the same rugged and durable exterior construction as the EOS-1D x without adding additional bulk. Incredibly lightweight, this receiver integrates seamlessly with the camera's extension system terminal, allowing the Hot shoe to remain accessible while powered by the main camera unit. Able to withstand harsh weather conditions, The gp-e1 is a great enhancement to the EOS-1D x for those who wish to take their EOS system out into even the most remote environments.Accurate clock adjustment and synchronization - to be able to endure a photographer's travels, Canon designed the gp-e1 to share the same rugged and durable exterior construction as the EOS-1D x without adding additional bulk. Incredibly lightweight, this receiver integrates seamlessly with the camera's extension system terminal, allowing the Hot shoe to remain accessible while powered by the main camera unit. Able to withstand harsh weather conditions, The gp-e1 is a