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Nowadays it is very fashionable to have a mobile with a double camera. More and more manufacturers are signing up for it, even for the front sensor. An example of this is the Huawei Nova 2i, which equips a dual sensor in the secondary part of 13 and 2 megapixels with Flash. Also, recently, Samsung has surprised with the Samsung Galaxy Note 8, its first device to have two main cameras. It is possible that this fashion still catches you somewhat distant. Maybe you still have a phone with a traditional photographic section. However, what are the real advantages of buying a mobile with a double camera? Worth?
The main objective pursued with this system, logically, is to capture better images. Dual camera phones work with two independent sensors, which at the same time work together to capture the best photo. Basically, this means that while one sensor is dedicated to capturing the monochrome information of the image (in black and white), the other tries to capture the RGB information (in color) to combine them and achieve the final photograph. Here are some of its advantages.
Better low-light photos
One of the main benefits of dual rear camera phones is that they can capture better photos in low light. This is because while one sensor is responsible for capturing the image, the other is doing the same to achieve the maximum light in the snapshot. When the two images are put together at the time of photo processing, the result is sharper color shots with better exposure. All this although the light conditions are scarce.
Samsung Galaxy Note 8
Wide-angle photos
Mobile phones with a double camera on the back also offer the possibility of expanding the angle that the sensor is capable of capturing. This means that for group photos, a camera with a higher viewing angle will get all the people in the photo out. Even though there is a certain distance. If the phone does not have a sufficient angle of view, the person taking the photo will have to move away so that no one is left out of the photo.
This type of wide angle lens is very popular for taking photos of monuments, buildings or landscapes. This is because they are able to capture more information from a small distance.
ZTE Blade V8
Better zoom
Another of the enormous advantages of acquiring a mobile phone with a double camera is that the zoom also benefits. The fact of having two lenses that work independently, causes that when the images are combined, an optical zoom equivalent to 5X is achieved. All this without the lenses having to move from their location. This is tremendously difficult for sensors that are built into phones that do not usually exceed 8 millimeters in thickness.
Having more details, therefore, of an object or person that is in a place far from where we take the photo, is much easier with a mobile phone with a double camera than with a traditional mobile.
iPhone 7 Plus
Selective blur
Finally, we have not been able to put aside the selective blur. Another strong point when opting for a dual camera phone. These sensors help us to highlight an object with respect to the other elements that appear in the photo. They help us to focus everything that is in the foreground to blur the background, which creates a Bokeh effect.
For example, in portrait photos this Bokeh effect blurs everything that is behind the main element of the portrait. Focus all attention on the subject for more realistic results. We can say that the captures with a mobile phone with a double camera will be very similar to those we would get with a reflex camera.
