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How Multiple Cameras Work On Android And iOS Smartphones

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How Multiple Cameras Work On Android And iOS Smartphones 1

How multiple cameras work on smartphones have always been a question on the minds of most people and 2019 is the year of multiple cameras and many if not all smartphone brands have released phones with multiple cameras. You’ve probably seen the Nokia 9 Pureview with 5 cameras and the Huawei P30 Pro that comes with 4 cameras  (40MP + 20MP +12MP +TOF Camera) and 50x optical zoom. 

 

https://www.gadgetsnow.com/mobile-phones/Huawei-P30-Pro

                                                               Huawei P30 Pro

 

How Multiple Cameras Work

These two devices come with crazy specifications but I won’t go into that right now, maybe in another post.

However, have you ever tried covering the main camera of your device with a dual camera?

If you haven’t, try doing that right now.

You’ll notice you are actually blocking the whole camera. That leaves the question – What do the secondary cameras do and how do they work.

How Multiple Cameras Work On Android And iOS Smartphones 2

 

How Multiple Cameras Work

Now I want you to understand this. Most OEMs have other uses of their secondary camera other than the ones I’m going to mention below. These are just the basic functions of the secondary camera.

The secondary camera improves the overall clarity of the image with the help of a “Monochrome” feature. The secondary camera only records the black and white version of the image. With the help of the Monochrome sensor, the primary camera measures how much light is coming from the point of focus.

Previously (with the exception of the Google Pixel 3), the primary camera in smartphones normally handled the measurement so there was a very high possibility of losing some detail while measuring light intensity since it would still need to work on the color filtering.

So this extra burden is handled by the second camera which takes care of that area. Combining the monochrome image which has detailed information about the light and sharpness with the colored image that was captured by the primary camera will produce a rich and detailed image.

In some phones, the secondary camera acts as the zoom lens. Huawei uses their cameras on the P30 Pro a bit differently but going into the entire details might end up making this post a bit lengthy and a bit boring for people who aren’t hardcore techies so I’d try to keep this balanced. However, if you’d like to see that in another post do let me know in the comments.

So that’s basically how multiple cameras work on smartphones

Michael Ajah is a Computer Science Student of The University of Port Harcourt and a Chelsea Fan. He loves RnB and a little mix of Trap Music. An awesome tech reviewer and analyst. Email - [email protected]

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3 Comments

3 Comments

  1. Samuel Jarvis

    April 2, 2019 at 6:00 pm

    Please explain the rest as with the p 30 pro.

    Nice post

    • Michael Ajah

      April 3, 2019 at 1:16 am

      Thanks. I would put up a detailed post about that soon. Don’t forget to subscribe to the posts on this blog

  2. Developer

    April 16, 2019 at 6:31 pm

    Awesome post. Thanks for sharing with us.

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smartphones

Vulnerability in RCS messaging could compromise your bank details

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German security company SRLabs has recently discovered a serious security breach that could replace SMS. According to their findings, the RCS protocol has a vulnerability that allows your data to be intercepted.

Hackers could exploit this vulnerability locally or remotely. Among the information they can intercept, we have unique codes that are sent by message in two-factor authentication systems.

One of the applications of these unique codes is in the authorization of bank transactions. This means that in extreme cases your bank details could be compromised due to this vulnerability.

RCS

Android messaging should improve your domain verification system

As SRLabs points out, the most popular application supporting RCS technology is currently Android Messaging. According to its findings, this application does not properly verify domains.

This means that miscreants can spoof caller ID or DNS. Something that could mislead users and provide information they shouldn’t.

Coincidentally or not, Google revealed this week that it will accredit message senders in your app. The idea is for companies to register their contact numbers with Google so that they can validate them when communicating with users. A measure that will certainly reduce the impact of this vulnerability.

What is RCS and its differences from SMS

The acronym RCS stands for Rich Communication Service. Briefly, this protocol allows messages to be sent over the internet. The SMS protocol uses cellular networks to send messages.

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Vivo S5 will have a very peculiar triple rear camera, reveals official image

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Vivo S5 will have a very peculiar triple rear camera, reveals official image 3

We are just a week from the official presentation of Vivo S5, the next mid-range smartphone to be launched by the brand. Now, an official image published on the Chinese social network Weibo, has confirmed several details about the design of this smartphone.

According to the picture, the Vivo S5 will come with a rear ‘quad-chamber’, centred on the rear panel with a diamond shaped module. In addition, it will come with a small punch-hole in its screen, where the front camera will be embedded.

 

Vivo S5 has confirmed design on the official poster

In the diamond-shaped module, three of its four cameras are integrated, and the LED flash. The fourth chamber is positioned immediately below the ‘protrusion’.

In the front panel, we can confirm that you will not have a notch on the screen by choosing a small punch-hole in the upper right corner, where your front camera will be embedded.

Although visible, their margins appear to be quite thin, ensuring an immersive user experience. In addition, an AMOLED screen is confirmed as an on-screen fingerprint reader is present.

Alleged Vivo S5 Specifications

Although not officially confirmed by the manufacturer, certification of the smartphone at TENAA agency eventually revealed the main details about its hardware.

  • 6.44 “inch AMOLED display with Full HD + resolution
  • Qualcomm Snapdragon 712 Processor
  • Up to 8GB of RAM
  • Up to 256GB of internal memory
  • Four rear cameras: 48MP + 8MP (ultra wide-angle) + 5MP (depth) + 2MP (macro)
  • 32-megapixel front camera
  • 4,010mAh battery
  • Android 9 (not confirmed)

Regarding its price, there is no information yet. Still, it is expected to arrive at a competitive price, which could possibly be around € 250.

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