Deep Analysis of Three Major Upgrades on iPhone 4S's Camera

It is a truth that iPhone 4S reveives most attention among this years' devices. Although, many upgrades on hardware are not satisfied by most of the Apple Fans, iPhone 4S's camera is really satisfied me. On one hand, the brand new 800 million pixels back-illuminated CMOS camear is 60% higher than the previous iPhone 4, on the other hand, it is worth to talk about the series attempts of iPhone 4S on taking photogragh. Today, I will talk about the Three major upgrades of iPhone 4S's camera.

How is the photo effect of iPhone 4S?

In 2011, 800 million pixels is not at the leading position. Apple upgrades iPhone 4S's camera to 800 million pixels just as its always negligence to camera. Tough the hardware is not that outstanding, we can see that the previous iPhone 4's photo effect is superior to other mobile phones. So I am really excitting to see the iPhone 4S's camera.

This time Apple gives iPhone 4S's camera three major upgrades: 800 million pixels, 1080p full HD video and faster response speed.

Nowadays, people is more and more reasonable on camera's pixels. People no longer think that the higher the pixel is, the better the camera is. That's right. Under the same sensor technology, the high pixel sometimes brings users more noise and longer save time. At the same time, people now are using twitter and mobile phone's screen is now 1280 * 720 most, too many pixel can not be seen on the screen.

From my pion of view, I think the 800 million pixel does mean something for iPhone 4S. Why? Because iOS is a kind of operating system that "depending on app". On the publish conference, Tim Coke, the CEO of Apple, talks about iCould more than once which connecting iOS and Mac OS closely. On the big screen of iMac 27, people can enjoy every corner of the photo from iPhone 4S's 800 million pixels camera. That is to say that app makes iPhone 4S having such high pixels.

Altough cellphone video share tech is not that common for people as cell phone's photo share today, with the development of 3G and 4G, it will be a common thing for users to share videos from their mobile phones. From iPhone 4, iphone family support taking HD video (not the highest one), but its effect is acceptable, even better than some kind of DC.

Iphone 4S supports full HD video taking as the prediction of media and analysis. We can not say anyting about it before we see the official sample of its full HD video from iPhone 4S. But one thing is definiately true that 1920*1080 HD video will be used more and more widely with the development of monitor and mobile device's support to full HD video.

Some fans may notice that iPhone 4S supports electronic image stabilization, which is underestimate by people for its lowing the video quality. But if you use it in the right way, it is a great tech of course, especially when you are taking video. Under the support of right algorithm, its effect is perfect, even better than the first generation of optical image stabilization.

Image sensor, lens and image processor are the three major technology of a camera. Lens is the same, image sensor got major upgrade, now let us talk about iPhone 4S's upgrade on processor. Compare with BIGIC and Bionz's single processor, iPhone 4S's brain A5 is dual-core and responssible for processing all the info of iPhone 4S, including photo and video. The official saying of Apple is A5 is 7x faster than A4. From the two generation of iPad, we know that A5 is much powerful than A4. That is a good thing for removing the noise on the photo of iPhone 4S. Also iPhone 4S is 33% faster than iPhone 4 on system response speed. This allows users to take pictures on fast moving things and reduce the interval time of two photos. Apple said that on focus speed, white balance and metering accuracy, iPhone 4S is much better than its previous.

Let us come to the conclusion, altough iPhone 4S's upgrade is not that impressive than the iPad 2's, you can see how much Apple care from the iPhone 4S's camera.