“lenses ..are they glass and the zoom optical? Is the image sensor ccd?”

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• The lens are high grade Nikon / Nikkor glass. They make the best lens and they are completely optical for the DSLR systems. The sensor is a 23.1 x 15.4 mm CMOS sensor, with 14.8 million pixels.

  Answered by BBellie 14 years ago

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• Lens is glass and the zoom is optical on all Nikon DSLR cameras. Image Sensor Type is CMOS. For fill tech specs please see: http://www.nikonusa.com/Nikon-Products/Product/Digital-SLR-Cameras/25472/D3100.html#tab-ProductDetail.ProductTabs.TechSpecs

  Answered by NikonStaff 14 years ago

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