Nikon technology

I really like Nikon's Dust reduction system.
Special should be taken when changing lenses in order to avoid the possibility of dirt or dust entering the camera. Once inside the camera, foreign matter may adhere to the low-pass filter and show up in photographs. To help prevent the appearance of these artifacts in photographs Nikon has created the Comprehensive Dust Reduction System. This system uses a series of high resonance frequencies to vibrate the optical low-pass filter. This dislodges dust on the front of the sensor and reduces dust spots appearing on images. This system combined with the existing Image Dust Off system in Capture NX 2 provides a full dust prevention system for photographers

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