iPhone 5S Camera Megapixels _Apple is taking steps to remain a little surprising pairing 8-megapixel iSight camera for its new flagship phone, the iPhone 5S.
The number is the same as the camera that has previously been used the previous two generations of the iPhone, the iPhone 4S and iPhone 5, so little eliminating iPhone 5S appeal in the eyes of ordinary users.
However, if the camera iPhone 5S is really the same as their predecessors? Apparently not. According to Apple, it is actually a series of improvements has been implemented behind the figure "8 megapixels" that seemed conservative. Anything? Here's the translation of KompasTekno, as excerpted from TechCrunch.
quality larger sensor
High resolution does have its own advantages. like the example of the Nokia Lumia 1020 with its 41 mega pixel camera which is claimed to capture images so detailed that can perform digital zoom without degrading quality.
Rather than enlarging megapixel camera, Apple decided to take the opposite, namely maintaining the 8-megapixel resolution, but by increasing the size of the sensor to 15 percent higher than in the previous iPhone camera.
The size of the pixel in the sensor captures light duty went up from 1.4 microns to 1.5 microns.
This step is similar to that made by HTC through Ultrapixel cameras, where each pixel size increased to 2 microns. However, the camera on the HTC One cut to just 4-megapixel resolution, while Apple retained the 8 megapixel camera.
what importance a larger pixel size? Imagine pixel is a bucket and light is the rain that fell from the sky. The wider the bucket, the more water that can be accommodated within the same time period. That is, the light of information that can be captured more.
This led to the quality of the picture-at least theoretically-nicer. Tone colors are captured more diverse with smoother transitions, the level of noise (grain) which appears in the photograph can be reduced.
To further improve light sensitivity, Apple helped widen the camera's aperture size iPhone 5S becomes f2.2 or 1/4 stop F2.4 aperture wider than the iPhone 5.
Apple claims to increase by 15 percent the size of the sensor also increase light sensitivity as much as 33 percent. However, even with the magnification of the camera sensor iPhone 5S is still much smaller than the property of a pocket camera (Canon PowerShot G15) though, as can be seen in the above comparison, especially when compared to DSLR (Nikon D7000) that times-fold big.
The quality of pictures iPhone 5S catches can not be assessed while the device was still out in the market. However, the example photos below seems to be quite promising for the size of a smartphone camera.
Apple A7 Processor
Not only sensor on the camera are changed by Apple. Apple's new A7 processor that also contribute to the improvement of the quality of the images.
This processor has the Image Signal Processor (ISP) is integrated, or commonly known as Digital Signal Processor in digital cameras. ISP specifically process all tasks related to image processing on the iPhone 5S, including color correction, white balance settings, format conversion, and much more.
Well, the ISP on the iPhone 5S has a number of new capabilities, such as the so-called tone mapping can increase the coverage on the photo and Autofocus tonal matrix metering with 15 focus zones.
This latter feature commonly found on DSLR cameras and allows you to produce a more accurate exposure in difficult lighting conditions, such as when users take pictures in front of a sunset.
A7 processor speeds higher also allows the iPhone 5S take multiple images at once in a single snapshot and choose the most good or sharp. This can be done either in single shot mode or "burst" mode with a speed of 10 FPS.
For the burst mode, the iPhone 5S will automatically select the images based on a number of criteria, namely the accuracy of exposure, sharpness, face detection, as well as those in the photo when the subject is smiling or closing his eyes. The analysis is done in real time without user intervention.
Results The best selection is then submitted to the user to choose from. This automatic selection purposes is to facilitate the process of selecting a burst of photos that number could reach hundreds.
"Flash" two colors
The most striking difference from the iPhone 5S with its predecessor is the flash unit "True Tone" which has two LEDs with different colors, namely white and yellow.
What is the point? Flash on smartphones or digital cameras have a color temperature that is set to be equal to the sunlight. When used in the same light conditions with the flash color temperature (such as a fill-light in the daytime), the picture appears to have a uniform color.
However, when the user takes a photo with flash in a different light conditions with the flash, for example in the room with a yellowish light color, then the flash illuminated subject will appear different to the surrounding environment. Common is the subject of color "neutral", while the background color is too yellow.
Which aimed to overcome this problem by True Tone flash the iPhone 5S. With the two different LED colors, is capable of producing flash color temperature is different also to adapt to the environmental conditions.
In the digital SLR camera, the color temperature difference is usually overcome by making flash light output becomes the same color all around. The trick is to attach colored filters (gel) in front of the flash.
Apple claims that the True Tone can produce 1,000 kinds of flash color variations to match with a variety of light sources, ranging flame of the candle to the sun in broad daylight. In addition to color balance flash output with the environment, True Tones also known to produce skin tones are more natural subjects.
Two LEDs on True Tone flash likelihood will not "shoot" in full force at each snapshot because the iPhone 5 should balance the ratio of output both to produce the necessary color combinations.
For the light conditions are not too "yellow", for example, may be only the yellow LED will be lit with low intensity. So, should the output power of the flash True Tone would not be much different from the previous generation.
Additionally, True Tone presumably can not do much in the conditions under fluorescent lights whose color is more likely to lead to a green spectrum, while it only has a LED flash yellow additional.
Penstablil image
The mechanism of anti-shock features or image stabilization on the iPhone 5S is quite interesting. According to the Apple, to reduce blur due to movement of the user when low-light conditions, the camera iPhone 5S take lots of photos and then take the parts that most sharply in each of the image to produce a final image of the most optimal sharpness.
Image Stabilization is actually only overcome the problem of blurring due to camera movement and not the movement of the subject, such as leaves blowing in the wind.
However, through a combination of anti-shock features and taking a lot of pictures at once (multi-shot), the iPhone 5S should be able to deal blurring due to camera movement and subject simultaneously.
Video "slow motion"
iPhone 5S can be called to record 720p HD video in a frame rate of 120 fps can be played back in 30 fps slow motion so that it displays (25 percent).
Interestingly, users can choose to display this slow motion in certain segments in the video, while the rest walk at a normal pace.
Panorama
The ability to record panoramic images with resolutions up to 28 megapixels is already there on the iPhone 5. On iPhone 5s, photo capture mode is further enhanced through automatic exposure correction features for each frame that is incorporated in the panorama.
As a result, the iPhone 5S referred able to capture landscape photos with a more consistent exposure between different areas of the image, as in the example below.
There are also features shooting in a square aspect ratio (1: 1), as in Instagram. This one is the default operating system iOS 7. Both slow motion mode, panorama and square aspect ratio applications accessible via the main display and the camera can be selected simply by swiping a finger.
teach iPhone
Improved camera iPhone 5S in terms of hardware and software intended for the smartphone can take pictures better. The purpose of this is explained briefly in the explanation of the respective mobile camera on the Apple website.
"It makes more sense to 'teach' iPhone about how to take a good photo than train users to become an expert photographer," reads one sentence, as quoted KompasTekno from Apple's official website.
Users who know how to take great photos with a smartphone may be a little offended. Of course, a good photograph is determined by the camera/smartphone than their own image-making tool.
Currently, either consciously or unconsciously, every smartphone user is actually a photographer. However, the majority of users are not "expert photographer". In most cases, users want to take photos as good as possible, but do not have the training or experience to optimize the available tools. iPhone 5S try to present a solution to these problems.
IPhone 5S own ability remains untested. However, any increase or potentially photography automation device frees the user to concentrate on the one thing that is more important than technical issues, namely shooting and capture images with the power of iPhone 5S Camera Megapixels.
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