Pixii gets more pixels and more performance for a sensor that delivers a remarkable image quality. Its BSI architecture is more efficient for collecting light, even with some difficult wide-angle lenses, thanks to its improved angular response.
The new pixel design features an ultra-low noise floor, for a cleaner signal in underexposed areas. Its extended full-well capacity (FWC) pushes dynamic range to a whole new level.
The new sensor features an extended ISO range, from ISO 160 up to ISO 12800 natively, with higher sensitivities possible by software.
Footnotes
Full Well Capacity: 52320e measured at native ISO 160 (+0dB); FWC varies with gain and decreases when ISO is increased; the values can also vary depending on the mode of operation of the sensor.
Millions of pixels: starting with model A1571, the Pixii sensor pixel count increased from 11MP to 26MP.
Read Noise: down to 0.83e measured at maximum ISO gain, 1.0e observed at native ISO gain; the values can also vary depending on the mode of operation of the sensor.
Rangefinder focus accuracy: measured at 1m of distance; the accuracy varies with the focus distance; the error margin increases with the distance but so does the depth of field; the increased depth of field generally over compensates the focus error margin.
Capacity of storage: 3657 photos can be stored in the camera with an internal storage capacity of 128GB and an average file size of 35MB per photo.
GPR format support: GPR uses wavelet compression to reduce the size of raw frames by a factor of 4:1 up to 10:1. See https://github.com/gopro/gpr for more details.