Ahead of the emergence of Galaxy S9 in February in the carpet Mobile World Congress 2018 in Barcelona, Spain, various leaks about Samsung’s new flagship device is increasingly profusely circulated.
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One of the latest leaks shows photo packing Galaxy S9 is annotated with a number of specifications and features. There are two points of interest here.
First is the description of the packaging box mentions that the Galaxy S9 will be equipped with video recording feature “Super Slow Motion.
No mention of exactly how slow the frame rate of this video, but there are allegations of numbers ranging in 1,000 frames per second (FPS), approximately equivalent to Sony Xperia XZ Premium is known to be able to record 960 FPS video.
When played at 30 FPS normal speed, super slow motion video with a frame rate that high will produce a movement that is 32 times slower than the video with normal speed.
Today’s high-end phones are usually capable of recording slow-motion video with a frame rate of 120 FPS (4x slower than normal) or 240 FPS (8x slow from normal) depending on device and resolution options.
Variable aperture
As summarized by KompasTekno from Phone Arena on Monday (15/1/2017), slow motion 1.000 FPS video requires high shutter speed too, at least 1/1000 seconds to match frame rate.
Perhaps that is why the Galaxy S9 packing case leaked to mention that the device will have a f / 1.5 aperture-wide camera lens, including the widest current, even wider than the LG V30 camera lens with f / 1.6 openings.
The smaller the aperture number, the wider the aperture of the lens aperture so that more light enters the sensor (for example, the f / 1.5 is wider than f / 1.6). As a result, the shutter speed aka shutter speed can also rise up.
Interestingly, the Galaxy S9 lens is said to have two apertures, namely f / 1.5 and f / 2.4. Possible camera phone is equipped with variable aperture that can arrange the aperture opening as there is in flip phone Samsung W2018 which marketed in China. Almost all other phones usually have aperture value that is “fixed” alias can not be changed.
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If the aperture of the diaphragm is reduced (from f / 1.5 to f / 2.4), then the incoming light will decrease so that the shutter speed decreases. However, the depth of field increases and the overall image quality increases.
Perhaps Samsung deliberately provides two variable aperture options in Galaxy S9 camera for two different purposes. Aperture f / 1.5 fits in low light conditions such as indoors, to raise the shutter speed to minimize blurry images due to subject movement
Meanwhile, f / 2.4 openings for bright situations where the shutter speed is already high because of abundant light and users need sharpness of the image, such as when photographing the scene.
Leaked photo packaging also revealed that the Galaxy S9 camera has a 12 megapixel resolution and also equipped with Optical Image Stabilizer. Meanwhile, the front camera has an 8 megapixel resolution.
The diagonal of the screen is called 5.8 inches with Quad HD + resolution. There is also 4 GB of RAM, 64 GB storage, Iris Scanner, IP68 certification, as well as speaker and earphone AKG tuner.
Galaxy S9 presumably only provided one main camera. Meanwhile, “bigger brother” is larger, Galaxy S9 Plus, allegedly will have a double camera on the back.
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