Each pixel in a group of four takes the picture at different exposure times: two pixels take medium exposures, one takes a long exposure, and one takes a short exposure. This allows the sensor to capture light from the scene in front of it with greater precision. The ISOCELL GN1 combines the information from these three exposure levels to produce an HDR image in a single shot in which the user is able to preview immediately.
Letting in Just the Right Amount of Light
Native ISO determines how sensitive an image sensor is to light and is determined by the conversion gain value. This value affects the full well capacity, or how much light the photodiodes can receive, and the noise level. Incorporating a fixed, native ISO into an image sensor limits its ability to adapt to changing light environments.
Traditional image sensors often came with a single, high native ISO. While this is helpful in reducing noise in low light environments, a smaller full well capacity makes these sensors less capable of showcasing highlight areas in bright environments.
The ISOCELL GN1 features an additional low native ISO able to accurately respond to bright environments, and its Smart-ISO technology selects the ideal conversion gain value for each lighting situation. The result is optimal dynamic range and reduced noise across all kinds of shooting conditions.
While shooting portraits at the beach on a sunny day, for example, it will choose the low native ISO to increase full well capacity and extending the dynamic range for bright sections of the scene. If the camera were using a high native ISO in these situations, the signal would be over-amplified, blowing out the bright sections and leaving little to no detail in those areas of the image.
Conversely, when taking selfies with friends at a late-night party, Smart-ISO technology will choose the higher native ISO to produce optimal brightness with less noise and capture more dynamic range in dark sections of the scene, bringing out every detail even in the shadowy areas of your image.
Pro-Grade Photography in the Palm of Your Hand
The ISOCELL GN1 packs a lot of technology into a small sensor. As Samsung’s first image sensor to feature both Dual Pixel and Tetrapixel technology, it equips your smartphone camera with the power to adapt to any environment so that you can capture great photos no matter what lighting condition you are in. With this versatility, you can enjoy a full suite of pro-grade photography tools right from your smartphone.
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* Technological term of 'Tetrapixel' was updated in July 2022