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Message: <blockquote data-quote="voxmagna" data-source="post: 585726" data-attributes="member: 38477">Dust or spots can come in different sizes! This was large and visible on preview WITHOUT magnification. When I looked at the images on a PC there were also 6 or 7 smaller spots. It's a common DSLR problem for those that have it and it's not always that easy on location to shoot some clear sky or plain background, find the spots, know where they are, then successfully clean them off.  Some don't worry about it and  say they never see it. They must be shooting in murky U.K weather at f stops wider than f11 with no plain areas in the scene? If you buy and use a high res. camera you can expect surface spots on the sensor larger than a pixel to be seen against a uniform background, unless masked by darker content.I saw that link and they say they are producing a Nikon lens version. My concern is they draw in air from around their substitute lens fitting. I don't believe a Nikon camera body is perfectly hermetically sealed and this would mean dust could come in through those parts. If dust is adhered and not loose free to be sucked out I think it will stay put. A sealed bag large enough to take the camera body or lenses with a vacuum cleaner hose adaptor at one end and a large area 0.3 micron filter at the other would do the same thing or better. A dust vac solution must consider both the camera body and the lenses plugging into it.When you start locating and removing dust particles seen on the final image you should know exactly where to start looking on the sensor, or does everybody just brush away and hope for the best? It seems to me as you look down at the sensor the image is inverted and transposed left to right. Is that correct? </blockquote>

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