A lot of D600 oil/dust spots but what to do? Is there a guide?

That was the advantage of film cameras, evertyime you take a picture you get a new section of film that will produce another picture. Digital cameras use the same sensor over and over again. Eventually a tiny spec is going to land on the sensor.

The little spec in the picture is no big deal, if you want it gone, then clean the sensor. Not need to get your panties in a bunch. I have a D300, D300s and a D800. If I look hard enough, I can see tiny spots on the sensor of all three cameras.

The of air is full of dirt. What makes you think a tiny piece isn't going to land on the sensor. You may never get every spec off. There is no such thing as perfection.

Bob

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