Hi guys,
What would you recommend for cleaning the sensor on my 6D? I have 2 very small strands of cotton/hair stuck on the sensor, and no matter how many times I use my Giottos blower (largest version) on it, it refuses to come off.
What is the next best (DRY) method to clean the sensor?
Otherwise, how much does it cost for Canon to clean the sensor (and also my lens) respectively?
My 24-70ii also got ruined by the fine sand when I visited the sand dunes last week. It seems to leave some fine scratches that I can't remove after blowing/cleaning with isopropyl alcohol. 



