A129 Pro 4K - Dynamic Range
When commenting on the brightness of the front and rear cameras, it is important to remember that the front and rear cameras of the A129 Pro are very different from each other. The 4K front camera has a high resolution IMX317 sensor which also has a very wide dynamic range (even without enabling WDR). The FHD rear camera has a high sensitivity IMX291 Starvis sensor with a lower dynamic range.
Driving around town early this morning in bright sunlight with strong shadows, the front camera with CPL fitted maintains a very good exposure, with detail in the shadows and limited areas of burnt out highlights. The rear camera (set to EV +1/3) also maintains a decent exposure, however the shadows are darker and there are more over-exposed highlights.
Front camera 4K 30fps / EV 0 / WDR off / CPL on
Rear camera FHD 30fps / EV+1/3 / WDR off / CPL off