Plug in and go!
Does GPS sound complicated? With the GP-1, it could hardly be simpler
Make the connection
The GP-1 slots into the camera’s hotshoe, but the connection’s actually made via the camera’s accessory port. The unit comes with a 10-pin connector for attaching to your Nikon. There is a GP-1A version with a redesigned 10-pin locking nut, but that’s the only difference.
The GPS options are on the Setup menu. By default, it powers up only when the meter is active. This means a short delay, so the GPS data may not be available if you raise the camera to your eye and shoot quickly. You can opt to have the GPS active all the time, though.
Red or green?
Now all you have to do is watch the lamp on the back of the GP-1 unit. If it’s green, it means it’s receiving a signal from the GPS satellites and embedding the location data in your images. If it turns red, it’s lost contact, but it will turn green again as soon as it can get a new fix.