I just bought a sensor clean kit to clean my D40 in the last week. It was the first clean and the camera has done about 10000 shots. It really was quite bad. I put it down to buying a few more lenses in the last 12 months so I am changing lenses a lot more. Also a 4 week caravan trip into our Aussie outback last year did not help as red dust gets everywhere.
I am not sure if that helps you though!
I think you probably have a build up of dust floating around in the body so maybe you need to vacuum it out. This dust is falling back onto the sensor.The kit I bought had a little vacuum cleaner that came with it for this purpose.
Have you been changing lenses more often or using your 70-300mm or other zoom lenses? Zoom lenses pump more air in and out. The environment you were recently shooting in could have been dustier than you thought. Good Luck and Enjoy your Nikons!
>Hi Paul, > >Have you been changing lenses more often or using your >70-300mm or other zoom lenses? Zoom lenses pump more air in >and out. The environment you were recently shooting in could >have been dustier than you thought. >Good Luck and Enjoy your Nikons! > >
I only have one lens on the body, a Sigma 18-125mm. It does not seem to produce any dust on my D200 though, so the lens might not be the issue.
I make a point to NOT swap lenses in the field, or at all for that matter.
The vacuum does seem like a good idea, since there might be some dust trapped in the body.
I've noticed that dust with older zoom lenses it much more of a problem than with any other lenses that I attach. I suspect that its because as the lens gets older the seals get worse and gaps get bigger. I also wonder if the friction inside of the lenses is causing dust...
I've been considering using a body with weather sealing for outdoor shooting, like the D200/300. Problem is, these are much heavier bodies and it be quite annoying to have one around your neck for 8+ hours.