- Set the camera to manual exposure mode
- Enable RAW recording mode
- Set focus to manual
- Set the focus ring to infinity (rotate the ring completely in, then back it off slightly). TIP: once focus is achieved, use masking tape to "lock" the focus ring in place.
- Use at lest one of the following to help the camera to settle from any vibrations
- Self Timer
- Remote trigger
- Set white balance to auto or AWB
- Enable long exposure noise reduction or take dark frame (shutter closed)
- Enable live view mode if supported to assist with focusing
- Enable mirror lock if supported (prevents vibrations from the mirror flipping up)
- Choose an exposure setting (the lower the f/ratio, the better), then adjust as necessary. Don't forget the rule of 600.
- f/1.4, ISO 1600, 30 seconds
- f/2, ISO 3200, 30 seconds
- f/2.8, ISO 6400, 30 seoncds
- f/3.5, ISO 10000, 30 seconds
- f/4, ISO 12800, 30 seconds