The CamRanger is great for astrophotography, star trails, and light painting
The CamRanger can be used for Time-lapse and Bulb mode (See supported cameras). Time-lapse can be set up using the CamRanger app and then the iPad, iPhone, Android, Mac or PC can be disconnected from the device. The battery for the CamRanger can last up to 12 hours on intervelometer.
The night mode feature provides a red overlay to help keep your night vision intact.