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HELP If white spots are dust, what are black spots


carylwithay

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Caryl--

Remember, whatever color a speck may be to the eye, you're seeing its shadow on the sensor. So it's obscuring light and leaving a dark spot.

 

As Steve said, it's most likely dust: Clean the sensor.

 

(Don't know about white spots. They should also disappear with cleaning. Keep us posted if not!)

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Caryl - don't forget that a blower simply displaces the dust and it can come back quickly. You're much better off with a charged brush system like Visible Dust which actually removes the dust. VERY easy to use - a bit expensive at the beginning, but then no consumables to use up...

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Thank you Chris. I have a gadget called InnoDesk that is intended for cleaning delicate machines like the inside of computers. It looks like a flashlight,sort of, and has a battery operated air stream that comes out a very small opening. It is not strong like canned air and it is nothing but air. So far it really works well.I will get something else if it does not do the job.

Caryl

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Avoid canned air. The propellent in some types can cause problems.

 

My first line of attack when cleaning the sensor is to use a hand held 'hurricane' blower. That removes the dust 95% of the time. The Visible Dust range of products offer a good means of wet cleaning where necessary, they make a swab that's the perfect size for the M8's 1.3 cropped sensor.

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I find Giotto's Rocket Blower a very good product.

Rocket-air

The next step is the Arctic Butterfly, and after that, if needed, swabbing the sensor using Sensor Swabs 1.3x and Eclipse2.

 

I would like to emphasize that it is essential to remove all loose particles with the blower or the butterfly before wet cleaning!!! It is not a good idea to drag a miniscule sand grain over the sensor with the swab.

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