Canon Exclusive: 3.89 Megapixel Full HD CMOS Image Sensor
The VIXIA HF21 captures 1920 x 1080 high definition video through its Canon designed and manufactured 3.89 Megapixel HD CMOS Image Sensor, similar to the CMOS image sensors in Canon's EOS Series Digital SLR cameras.
High color resolution and advanced color reproduction is provided by the VIXIA HF21's sophisticated CMOS image sensor. It is also unique in featuring Canon's proprietary noise reduction technologies for crisp, sharp images. Low noise technology also means that even in dimly lit scenes, the signal from each pixel is as pure as possible, with minimal noise or other aberrations. It's the ideal sensor for HD.
The VIXIA HF21 uses an RGB Primary Color Filter with Bayer Placement Pattern that separates light into red, green and blue color components. This results in vibrant images with deep, rich, accurate color and natural-looking tones similar to what you'd obtain from 3CCD camcorders. As an added benefit, the CMOS sensor provides outstanding image capture in low light conditions.