Optical image stabilization (OIS) has become standard in flagship models of almost all manufacturers in recent years. However, it is still only for the rear camera, where it is nevertheless more necessary. However, even with the front camera, it would not be disposable for many users (bloggers, YouTubers, etc.), which Samsung is well aware of. That's why he developed OIS for the front camera as well Galaxy S8 and S8+, but he didn't finish his work in the end, so he doesn't even brag about it.
JerryRigEverything came up with the fact and took it apart over the weekend Galaxy S8 and showed in his video how the optical image stabilization of the rear camera works. When he tried the same thing with the front camera, he found that it behaves basically the same, only the stabilization is a little less. So Samsung tried to get optical stabilization in the front camera as well, but in the end it probably didn't manage to, because it doesn't even mention it on its website.
And why doesn't it have a front camera in the finale Galaxy S8 optical image stabilization? Because OIS requires the camera to be bigger. In contrast to electronic stabilization (EIS), the sensor itself moves with optical stabilization, so it needs more space. This can be a problem for engineers when they want to achieve minimum dimensions. For the rear camera, tenths of a millimeter are not a problem in most cases, but for the front camera it is different. Especially at Galaxy S8, where it was necessary to fit the camera, iris reader and sensors into a narrow frame.
