7D sensor stains how to remove ?

Started Apr 30, 2012 | Discussions thread
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mermaidkiller
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7D sensor stains how to remove ?
Apr 30, 2012

On some pix I saw a few spots which is dirt on sensor.
Here a sample taken @ f/36 to make it very visible:

In bottom left corner and halfway left of center are the most prominent stains.

I tried to blow them away with a rubber / plastic blower bulb but to no avail.
Is there a way to remove these ?

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Canon EOS 7
Canon EF-S 15-85 f/3.5-5.6
Sigma 10-20 f/4-5.6
Canon EF 85 f/1.8
Canon EF 50 f/2.5 Macro
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Canon Powershot S100

 mermaidkiller's gear list:mermaidkiller's gear list
Canon PowerShot S100 Canon EOS 6D Canon EF 85mm f/1.8 USM Canon EF 50mm f/2.5 Macro Canon EF 70-300mm f/4-5.6L IS USM +3 more
Canon EOS 7D
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