- Set the M9 to sensor cleaning mode and use air blower to blow away as much dust as possible with the lens opening pointed down
- Open one cleaning swab and wet it with the cleaning solution
- In one smooth stroke, glide the swab across the sensor in one direction from end to end, DO NOT PRESS TOO HARD!
- Check to see if the sensor is cleaned, if not, repeat step 3 a few more times
- Turn off camera to release it from the cleaning mode, remount lens and take test snaps
I must say, it was no big deal. After a couple swipes with the swab, the sensor was gleaming in a deep emerald green shine and I was back in business! Some people are so afraid of doing something wrong that they always send the equipments into pro shops for cleaning. That's fine, but I figured this is probably something I should learn to do, just in case the need arises when I'm travelling. So, go ahead, DIY!