The Shrinking Camera Tech to Super Shooter Smartphones

Cameras in phones are so commonplace that users have started taking it for granted now! This Era is of DSLRs! However the developers are working conscientiously to improve the picture-taking capabilities of the smartphones which means cramming a lot of tech into a small, and thin, package.When Apple unveiled its new iPhone 7 last week, Senior Vice President of Hardware Engineering Phil Schiller called the device's camera one of the most advanced ever put in a smartphone.

Upgrading the cameras in smartphones typically requires improving the sensors that pick up the image, the optics that focus it and, perhaps most importantly, the software and computing power in the phone.

From Nokia 7650, the first phone to have camera to Apple's I phone 7 and Samsung Galaxy Note 7 which has 853,000 times as much data-storage space as the Nokia 7650.It's no longer about just having a bigger sensor.the earliest phone cameras lacked the ability to focus. Now, smartphones can alter the position of the lens slightly using tiny motors and can provide a wider variety of depths of field and better autofocus capabilities. In fact, a big selling point of the iPhone 7 is the optical zoom, which actually changes the arrangement of lenses. The iPhone 6 had only a digital zoom, which just enlarges the image with software; it doesn't add any detail. 

However the aperture of the lens limits the resolution of a magnified image because when light waves go through a smaller opening, they tend to diverge rather than hitting the sensor in parallel. This process is called diffraction. Magnifying an image only magnifies the loss of detail, so the big lenses that professional photographers use will outperform a smartphone camera's zoom in some areas.

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