Learn about Dual Pixel Pro autofocus on Samsung’s 50-megapixel camera sensor
Samsung’s new 50-megapixel camera sensor, the ISOCELL GN2, is equipped with Dual Pixel Pro autofocus technology, which delivers great promise.
A few days ago, Samsung unveiled its new 50-megapixel camera sensor as the new generation of GN1 sensor introduced last year. Called the ISOCELL GN2, the sensor has significant improvements over its predecessor, which has led to significant differences in performance between the two.
The technical specifications of this sensor are:
- Large 1.12-inch sensor with 1.4 micron physical pixel size (compared to Sony IMX766 50.2-megapixel sensor on OnePlus 9 and Find X3)
- 50/100 megapixel photos
- Default mode 12.5 megapixels with split 2.8 micron pixels
- New Dual Pixel Pro autofocus technology with left / right and up / down focus phases
- Efficient Staggered-HDR technology and Smart ISO Pro with improved dynamic range
- Slow-motion video at 120 frames per second in 4K
Dual Pixel Pro autofocus and Staggered-HDR capability
Samsung’s new autofocus technology is called “Dual Pixel Pro”. Samsung’s dual-pixel technology genius, later imitated by other camera sensors and handset makers, was to use all the sensor pixels for focus, not just a few pixels in scattered locations. The technology uses two separate vertical LEDs that can record the left and right phases to focus on one point, just like the human eye.
In addition, the ISOCELL GN2 1 / 1.12-inch sensor is literally large, increasing the actual pixel size by 1.4 microns to collect more light (not as large as the virtual large pixels in the Galaxy S21 Ultra 108-megapixel camera sensor, which is large They were 0.8 microns). The new 50-megapixel camera sensor can also use adjacent sensors to capture 12.5-megapixel photos with a giant pixel size of 2.8 microns; So this new sensor works better not only in focus, but also in receiving light than the Galaxy S21 Ultra.
In addition, Samsung’s new sensor has a technology called Staggered-HDR. Staggered-HDR is a multi-HDR technology that uses roller shutters on pixel arrays to capture multiple frames in short, medium and long exposures. This technology not only allows Galaxy phones to capture scenes with complex dynamic ranges that have a lot of light and shadows, but also offers 24% more energy consumption compared to the current HDR technology in the Galaxy S21 series phones. So this camera treats the phone battery even more kindly.