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Old Mar 1, 2009, 7:42 AM   #1
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What is the best way to remove dust from the sensor on a D40, given that there is no auto-clean on this model?

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Old Mar 2, 2009, 8:37 AM   #2
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Sensor cleaning is best to follow a 3 step process - stop when a step works.

1. Blower - rocket blowers work well - good amount of air without being damaging. DO NOT use compressed air - it's too powerful. And the cheap little blowers in the free lens cleaning kits aren't really powerful enough.

2. If blower doesn't work, use a Dry sensor brush.

3. If the dry sensor brush doesn't work then you need to use a wet technique. Do a google on copperhill method. They sell a kit which works rather well. Don't try to cheap out and use alternative 'in the home' solutions. Damage your sensor with them and you'll pay a lot more to get it fixed than if you bought the correct cleaning products.

The idea is to ONLY clean the sensor when it needs it. If your images aren't affected, it doesn't need cleaning. Any of the above methods carries with it a risk you can do more harm than good.
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