Super CCD
Encyclopedia
Super CCD is a proprietary charge-coupled device
Charge-coupled device
A charge-coupled device is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value. This is achieved by "shifting" the signals between stages within the device one at a time...

 that has been developed by Fujifilm
Fujifilm
is a multinational photography and imaging company headquartered in Tokyo, Japan.Fujifilm's principal activities are the development, production, sale and servicing of color photographic film, digital cameras, photofinishing equipment, color paper, photofinishing chemicals, medical imaging...

 since 1999. The Super CCD uses octagonal, rather than rectangular, pixels. This allows a higher horizontal and vertical resolution (at the expense of diagonal resolution) to be achieved than a traditional sensor of an equivalent pixel count.

On January 21, 2003 Fujifilm announced the fourth generation of SuperCCD sensors, in two variations: SuperCCD HR and SuperCCD SR. HR stands for "High Resolution" and SR stands for "Super dynamic Range". The SR sensor has two photodiode
Photodiode
A photodiode is a type of photodetector capable of converting light into either current or voltage, depending upon the mode of operation.The common, traditional solar cell used to generateelectric solar power is a large area photodiode....

s per photosite, one much larger than the other. Appropriately processing information from both can yield larger black to white range of brightness (dynamic range
Dynamic range
Dynamic range, abbreviated DR or DNR, is the ratio between the largest and smallest possible values of a changeable quantity, such as in sound and light. It is measured as a ratio, or as a base-10 or base-2 logarithmic value.-Dynamic range and human perception:The human senses of sight and...

).
The 4th Generation Super CCD HR has sensors placed at 45 degrees to the horizontal. In order to convert the images into the normal horizontal/vertical pixel orientation, it interpolates
Interpolation
In the mathematical field of numerical analysis, interpolation is a method of constructing new data points within the range of a discrete set of known data points....

 one pixel between each pair of sensors, thereby producing 12 recorded megapixels from 6 effective megapixels. By contrast, Fujifilm says that 5th Generation Super CCD HR sensors are also at 45 degrees but do not interpolate. However, it omits to explain how the sensors turn the image into horizontal/vertical pixels without interpolating.

On July 29, 2005 Fujifilm announced cameras with "5th Generation Super CCD HR sensors", the FinePix S5200
Fujifilm FinePix S5200
The Fujifilm FinePix S5200, , is a bridge digital camera made by Fujifilm. The camera has a MSRP of USD $285....

 (S5600) and FinePix S9000 (S9500). The FinePix F10 and F11 were released later in 2005.

In 2006 Fuji introduced the 6th generation of the Super CCD sensor (size 1/1.7", 6.3 million effective pixels, except for the F40fd which has size 1/1.6", 8.3 million effective pixels). This sensor allows for acceptable image quality even at ISO 800. It is built into the FinePix S6500fd
FinePix S6500fd
The Fujifilm FinePix S6500fd , known in the United States as S6000fd, was the first digital camera from Fujifilm with Face detection technology...

 (2006) bridge camera and the FinePix F-series
Fujifilm FinePix F-series
The Fujifilm FinePix F-series is a line of compact digital cameras that was renowned for its good low-light performance in 2005, with relatively low image noise and natural colors even at high ISO settings...

 F30, F20 (2006), F31fd and F40fd (2007) compact cameras, all of which are widely accredited for their class leading low-light capabilities.

In late 2007 the 7th generation was introduced (size 1/1.6", 12 million effective pixels). Included in Fuijfilm FinePix F50d (2007). This sensor, although sharp, has significantly decreased ISO performance compared to earlier generations, dropping in quality to average level. When compared to the 6th generation sensor, the individual pixel area on the 7th generation sensor is approximately 1.7x lower, considerably reducing the amount of light reaching each pixel. In mid 2008 the 8th generation was introduced (same size 1/1.6", 12 million effective pixels), included in Fujifilm FinePix F100d (2008). This sensor improves slightly on the previously lost ISO performance, but does still not seem to compare with the 6th generation sensors.

In September 2008 Fujifilm announced a new type of Super CCD sensor, the Super CCD EXR. This sensor aims at combining the advantages of the HR and SR sensor types in a single chip. It uses a new color filter array layout that allows for binning (combining) of pixels of the same color. Currently (Apr. 2010) this sensor is used in the F200EXR, F70EXR and F80EXR point-and-shoot cameras and the S200EXR bridge camera. Both the F200EXR and the S200EXR use the same 12 Megapixel 1/1.6" size sensor while the F70EXR and F80EXR use a 10 Megapixel and 12 Megapixel 1/2" sensor respectively.
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