For this sort of dust, I find the static charge nylon makeup brush the best solution. It picks free moving dust straight up off the sensor while barely touching the surface. Just blow air through a nylon brush to charge it with static and wipe it across the surface. Remember that the image is upside down (but not reversed, from your view of the sensor, so dust on the bottom of the image is at the top of the sensor.i used sensor cleaning swab (not sure if it called wet cleaning)
today for first time , it does looked a bit scary , but i did it even
few times and each time dust moved from one point to other , not
close to perfect clean , will post examples.
Hardly wet clean at all these days - maybe once in the past 18 months. Static brush is so easy and, none of the cleaning agencies admit, "dirt" cheap! ;-)
This all looks like stuff that a brush would easily pick up.
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Its RKM