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The sensor+ technology is basically about making charge binning
Here we have an example of a full resolution readout, we have 10 electrons of image content and we have 10 electrons of noise
That gives a one-to-one signal-to-noise ratio
If we binn pixels together outside the sensor
We have a noise contribution for each pixel that we readout. When we add these together we have a signal to noise ratio of two-to-one
But with Sensor+, we can do better than that!
Here we bind pixels together, inside the sensor
And we only have one noise contribution for this super pixel
So that means that we a 4:1 signal to noise ratio
Making chart spinning is fairly easy in a monochrome sensor, but it is very difficult in color sensors
When you binn pixels together in a wire pattern, you have to be very careful
If you just take the neighbouring pixels and add them together, like this
You will have pixels of a concentration of 4 by 4, but if you look at the larger image
You can see that these 4 by 4 pixels are actually cluttered together with some space in between them
And that is not good for the image quality
If we instead do it like we do in Sensor+,
You can see that we have green pixels overlapping the red and the blue pixels
In a much nicer manner, and evenly spaced. It is not like we have space in between them without pixels
This gives us a much higher image quality with Sensor+
This new IQ180 sensor can capture images in Sensor+ mode up to 20 megapixels
But if you compare this 20-megapixel image to another
Regular 20-megapixel sensor
You will see that there is a lot less moiré and that it is a lot sharper than if the sensor was a native 20 megapixel one