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Aptina details 1" sensor for mirrorless, bridge or broadcast-video cameras
Sensor maker Aptina has released more details of its two most recently-announced chips, including a 10MP, 1"-type sensor that uses its dynamic range-boosting DR-Pix technology. The company, which also makes the 1" sensors used in the Nikon 1 System cameras, is making this new sensor available to the wider market. It has also provided more detail about an 18MP 1/2.3" compact camera sensor that can shoot 1080p video with three different crops at up to 120 frames per second.
|Low-res sample image from the AR1820HS 1/2.3" BSI CMOS sensor|
The 1" sensor, officially known as AR1011HS, is capable of Quad HD (also called 4K) video that, at 3840 x 2160, is four times the size of 1080 video. This can either be used as a 4K 60p signal for super-high resolution video or four-pixel, RGBG clusters can be demosaiced to produce 1080p output with full color being captured for each output pixel. This is the same technique used on Canon's C300 professional movie camera - Aptina refers to it as 'broadcast quality' as it allows what's known as 4:4:4 output (each output pixel can have full red, green and blue information, rather than undergoing 'chroma sub-sampling').
In addition the AR1011HS uses Aptina's DR-Pix technology that uses one signal path within each pixel at base ISO (to maximize dynamic range) and a different one (to offer reduced noise) at higher ISO settings.
With these two capabilities combined, Aptina is saying the chip is suitable for use in mirrorless cameras, bridge cameras, high-end compacts or for broadcast video and high-end surveillance cameras.
Meanwhile, the 18MP 1/2.3"-type BSI sensor, called AR1820HS, can shoot at 24fps at full resolution and can offer 1080p video at up to 120fps. A second, larger video crop gives 1080p video with a 20% added border that can be used for electronic image stabilization. Alternatively it can offer over-sampled HD footage at 30fps from a 16:9 crop using the full width of the sensor.