Get set up for star trails
1 Compose the scene
With the camera on the tripod, set focus to manual (MF) and use the live view and magnify function to ensure the stars are in focus. If you want to include the centre of the star trial, you’ll need to include the North Star in your frame, which can be quickly found using an AR app like SkyLite.
2 Camera settings
Next, select manual mode and dial in an exposure of 30sec at f/2.8 (or whatever your lens’s maximum aperture is). The aim is to keep the ISO as low as possible, so take a test shot at ISO 1600 and dip the ISO as low as possible while ensuring the stars are clearly visible in the frame.
3 Adjust intervals
Use the camera’s interval mode to make it shoot one image after another, or add a compatible remote release that will do the same job. Make sure the battery is fully charged and format the memory card. Shoot for at least 45 minutes, but longer sequences of 1-2 hours can yield better results.