A picture tells a story worth thousand words. True. But if someone had told me 5 years ago that we would be creating stories every 5 minutes, I wouldn’t have believed on that. But such is the impact, on our daily activities, smartphones had in the last 5 years. Whatever we do today, be it playing cricket, cook a new dish, visit a new restaurant, or even watch the new episode of TV series, we never shy away from sharing its pictures on the net. Some might say this is because of all the social media platforms such as Facebook, Instagram, Snapchat and WhatsApp. But the truth is that such platforms would not exist had we not made advancement on the technological front. The advancement started from evolution of cameras from VGA to MPresulted in increased clarity and the details captured. And after that the MPs just kept on increasing. Now we have a smartphone which has a rear camera of 16 MP and a front facing 8 MP cameras. But apart from MP, there are many factors which help us to produce the stunning quality picture that we capture from our smartphone:
Aperture is defined by the size of the opening with which light can enter the camera. Aperture is measured in f-stops, which is a ratio of the focal length divided by the opening size. So, the smaller the f-stop, the wider the opening and therefore, more light can reach the sensor, resulting in better low light pictures and less noise. In the past 5 years, we have been able to significantly reduce the lens aperture so much that the new LG V30 has an f/1.6 lens incorporated in it.
Optical Image stabilization: OIS has been one of the most important advancements made in the history of smartphone camera. It has helped photographers to use their phones in a situation where they wouldn’t normally have been able to capture a blur-free shot. For example, a scenario where there could be a lower light setting for posed pics in a party or shooting a close-up photo of your favorite dish you want on Instagram.
It basically works by controlling the path of the image through the lens and on the image sensor with the help of sensors such as gyroscopes and calculating how the lens needs to move to balance this. The lens module then moves, accordingly,with the help of electromagnet motors, sideways or up and down. All of this happens as the image is recorded to reduce camera movement blur.
Phase Detection autofocus:
This feature has helped increase the speed of capturing pictures enormously. Phase detection auto focus splits the image into two ‘copies’, and then adjusts the lens elements until the two images ‘merge’, that are until they’re in phase.
The future is really bright as smartphones are just beginning to become efficient at machine learning. Its effects can be already seen in iPhone X- where you can unlock your phone using a face ID. If we go with this pace, it won’t be far when we will be able to fulfill all the needs of a DSLR using a smartphone and it will completely eradicate the DSLR market share.