First shots with my GoPro using a 16 stop filter.
The GoPro's main draw back for long exposures during the day is its fixed f/2.8 aperture. It has a fixed f/2.8 aperture because it is an action camera and needs to draw in as much light as possible for the fast action shots. Most cameras have an adjustable aperture range between f/2.8 and f/22, by adjusting the aperture you can reduce the amount of light hitting the sensor and make a longer exposure.
- ISO 100 = 131 seconds
- ISO 200 = 66 seconds
- ISO 400 = 33 seconds
- ISO 800 = 16 seconds
- 1/1000sec = 8 seconds
- 1/500 = 16 seconds
- 1/250 = 33 seconds
- Use a tripod
- Use self timer, remote or GoPro App
- Set GoPro to RAW (output settings)
- Shoot at the lowest ISO possible