Specks of dust on the CCD sensor (Nikon D80)?

I had this camera for a few months (I am a newcomer to the world two mirrors) and I realized that I have two small dark spots on the upper left corner of my photos (when viewed on a 1:1 ratio on a computer screen) and the 18-55mm lens at any time the level / zoom. with 55-200mm I noticed the spots. Clean the lens (the front, which is not the end that enters the camera) and it is also the mirror in the camera body. I think there are two possibilities: 1. Could it be that the back of the lens (the part that enters the camera) has dust in it, or 2. the CCD has dust in it? I do not know how to clean the low pass filter, and I'm not a fan of dust. My question is for those working with digital SLR for some time: what needs to be cleaned, and if you can not clean, how much on average to get a professional cleaning?

Just get Giotto rocket blower (about $ 10 – $ 20). remove the lens with the camera down, put him in the mirror lockup, press the shutter button and blow. (Do not glue the end of the tunnel on the camera if possible, can scratch or break something.

Review: Giottos Rocket Air Blaster Large

Precision Design 7 Piece Optical Lens and Digital SLR Camera Cleaning Kit with Brush, Microfiber Cloth, Fluid & Tissue + Hurricane Blower for Nikon DSLR D3000, D3100, D7000, D300s, D300, D90, D60, D5000, D40, D3x, D3 & D3s $8.95 It’s obvious that the cleaner the lens, the sharper your pictures will be. Dirt, dust, and fingerprints will degrade the image quality of even the finest optics. However, it’s important to avoid using incorrect cleaning materials which can permanently damage your photo equipment. Used properly, the cleaning supplies in this kit are certified safe for use on your valuable digital and film photo-equ…

Transcend 4GB SecureDigital Class 10 (SDHC) Memory Card + SD Hard Case + Cleaning Kit for Sony Alpha, NEX, Olympus & Panasonic Digital SLR Cameras $19.95 Kit includes:♦ 1) Transcend 4GB HC SecureDigital Class 10 (SDHC) Ultimate Ultra-High-Speed Card♦ 2) Power2000 Aluminum Memory Card Protector Case – Holds 8 SD, MS Duo or xD-Picture Cards♦ 3) Precision Design 6-Piece Lens Cleaning KitTake more high-resolution pictures faster (20MB/sec. minimum) with this 4GB High-Capacity SecureDigital (SDHC) memory card and full compatibility wit…

Nikon Digital SLR Camera and Laptop Backpack Case with Nikon 60 Tripod with 3-Way Panhead + Accessory Kit $149.95 Kit includes: ♦ 1) Nikon SLR Camera & Laptop Backpack ♦ 2) Nikon 60″ Full Size Tripod with 3-Way Panhead (Black) ♦ 3) Nikon 3-Piece Lens Cleaning Kit (Microfiber Cloth/Fluid/Moist Cloths) ♦ 4) Nikon Microfiber Lens Cleaning Cloth Spudz ♦ 5) Precision Design Deluxe Hurricane Blower Made from rugged, weather-resistant nylon, this backpack will easily hold your camera, …

Transcend 32GB SecureDigital Class 10 (SDHC) Memory Card (2 PACK) + SD Hard Case + Nikon Lens Cleaning Kit for D90, D3000, D3100, D5000, D7000, D300s, D3x, D3s Digital SLR Cameras $111.95 Kit includes:♦ 1) Transcend 32GB HC SecureDigital Class 10 (SDHC) Ultimate Ultra-High-Speed Card♦ 2) Additional Transcend 32GB HC SecureDigital Class 10 (SDHC) Ultimate Ultra-High-Speed Card♦ 3) Power2000 Aluminum Memory Card Protector Case – Holds 8 SD, MS Duo or xD-Picture Cards♦ 4) Nikon 3-Piece Lens Cleaning Kit (Microfiber Cloth/Fluid/Moist Cloths)♦ 5) Precision…

Nikon Camera Control Pro 2 Software Full Version + Nikon Cleaning Kit & Spudz + Blower for D3s, D3x, D3, D7000, D300s, D300, D90, D60, D40, D3000, D3100, D5000 & D5100 $149.95 Kit includes: ♦ 1) Nikon Camera Control Pro 2 Software ♦ 2) Nikon 3-Piece Lens Cleaning Kit ♦ 3) Nikon Microfiber Lens Cloth with Neoprene Pouch ♦ 4) Precision Design Deluxe Hurricane Blower Nikon Camera Control Pro 2.0 software remotely controls most functions of Nikon digital SLRs from a computer that is connected via USB cable or though wired or wireless LAN using a …

LensPEN Lens Cleaning System $4.99 Keeping your lenses spotless is one of the most crucial steps to high-quality photography. After all, just the slightest imperfection — such as dust, fingerprints or water stains — can mean the difference between a stunning portrait and an unsalvageable mistake. Unfortunately, lens cleaning systems do not always provide photographers with a reliable, convenient solution. Microfiber cloths can of…

Giottos AA1900 Rocket Air Blaster Large – Black $8.50 Blower, Giottos Rocket-Air Large. Giotto’s rocket-shaped air-blowing ball series are made from a silica gel, they are very powerful and refill quickly. This Giotto is far superior to the typical blower brushes…

Nikon 7072 Lens Pen Cleaning System $6.89 New Nikon Lenspen Pro 7072 Cleaning System Lens Pen.Will not scratch or damage lens.Outperforms all other lens cleaning devices.Unique LensPen tip is self-replenishing.Cleaning compound will not spill or dry up….