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When I use the Sensor Cleaning > Dust Detection feature in my M10 Monochrom or M10-R, and see dust spots, I wonder if that image is reversed. The reason it matters is that when I then use the Open Shutter menu option to use a blower to clean the sensor, I want to direct the stream of air as directly as possible at the location where the spot is. So if I look at the image on the LCD from Dust Detection and see a spot in the upper right of the image, should I then direct the stream of air at the upper left of the sensor as I hold the camera facing me? (If that's correct, then the image is not reversed; the location of the spot is on the other side simply because I've rotated the camera body 180 degrees.)
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I have noticed in the two more recent outings with my M240 that i have a lot of dust on my sensor. The attached image is from the most recent outing to see the airshow. The circles are the spot removal I had to do to fix all the dust. As you can see it is substantial. Note that I was stopped down to F22 on a 90mm lens to get the depth needed for the air crafts and people to be in focus. So the dust was more apparent in the image. I have cleaned the sensor with the blower multiple times. I have cleaned the sensor with swab and solution once between the outings. I switch lenses often enough for dust to get in, I expect it to happen. My problem is that after cleaning the sensor so thoroughly I should not have this much dust. It appears that using the blower provides minimal help and the swab basically nothing. Has anyone experienced such persistent dust? Could this be some sort of corrosion on the sensor? I am debating sending it in for a repair and service to fix the issue. Has anyone used this service before and has an idea of cost, procedure, and effectiveness in getting a clean sensor back?
