It’s notoriously hard and scary to for amateurs to clean the image sensors inside digital SLRs. Just by touching the delicate surface of the sensor you risk permanent damage or misalignment, which is why some DSLRs now offer dust detection and removal software – they basically say don’t touch the dust, the computer will interpolate the missing portions of the image. Me, I just pour a little cleaning fluid in there, swish it around, and keep shooting. This does nothing good for the longevity of the camera.

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Review: SensorKlear Loupe