Dual cameras in phone, how they are useful
28-09-2017 Thu 14:57

Ever since OnePlus5 dual camera phone has been released in the markets, the issue of two cameras on one side of the phone, has become talk of the town. Many thought, why two cameras, when one is enough. Let us see what it means to have dual cameras:
Dual camera does not mean the normal phone, where there is a camera on either side of it. It means two cameras on the same side, either in front of the phone or behind it. Dual camera phones are not new. HTC had introduced AO3D phone, way back in 2011. Later, some other companies focussed on this technology. HTC also introduced 1M8 with the same technology, in 2014. In the limited space on a smart phone, dual camera technology has been used for better phones. In the new OnePlus5, there are two 20.20 mega pixel cameras. Last year, Huawie9, LG G5, iPhone 7plus also stepped in to the market. Each of these cost Rs. 35,000 and more. Coolpad Cool 1 and Hanner 6x also give excellent photos.
What are their uses?

The area around the focussed object becomes expansive when seen through dual camera. Film frame is separate for each lens. Samsung Galaxy S7, S7 Edge, Google Pixel, OnePlus3, LG5, HTC 10 will give good pictures even in less light. They function better when compared to other dual cameras. Generally, in dual camera phones, the first camera is used for clicking photos. The second camera is arranged to zoom to enhance clarity. What the first camera cannot do, the second one does. In single rear camera, the quality of the image is compromised, when zoomed. But it is vice versa in dual cameras. More light is allowed due to dual lens. Hence, it is possible to take clear pictures, even in less light. There is no fear that the image will be blurred or shaky.
Front dual camera

Disadvantages
Dual camera phones use more battery power. The cost of the phone is also more, with normal specs. If the quality of the cameras is not good, photos too come out poorly. The photos taken with dual cameras occupy more space. So the battery capacity should be more. A good quality single camera phone, with good picture quality is better than a poor quality dual camera phone, experts observed.
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