I have a D40 as well and have been putting it to good use with respect to astrophotography. I also came across these demon blobs when I took it to Australia for a holiday and saw them floating around in my initial photos!
After some research, I came across a nifty little tool called the "Giottos Rocket Air Blaster". It's a little pump shaped liked a rocket (!) and is really good. I have used it to blow dust of my CCD sensor on my D40, from the lenses of the camera as well as eyepieces. The demon blobs have been exercised!
Better yet, I picked one up from my local camera store for a tenner.
http://www.pictureline.com/products/3332/Giottos_Rocket_Air_Blaster_7.5%22/
Cheers,
Phil
After some research, I came across a nifty little tool called the "Giottos Rocket Air Blaster". It's a little pump shaped liked a rocket (!) and is really good. I have used it to blow dust of my CCD sensor on my D40, from the lenses of the camera as well as eyepieces. The demon blobs have been exercised!
Better yet, I picked one up from my local camera store for a tenner.
http://www.pictureline.com/products/3332/Giottos_Rocket_Air_Blaster_7.5%22/
Cheers,
Phil
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Meade 12" Lightbridge
Celestron CGEM
AstroTelescopes 80mm ED Refractor
Williams Optics 66mm Petzval
Orion Skyquest XT6 Classic
Nikon D40 DSLR
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