The camera used by Apple on each generation of iPhone has a better performance than similar products. It is also 8 million pixels, and the iPhone 5 has a better photo effect than the iPhone 4S. Now let's start from Analyze the reason why iPhone 5 has excellent photo taking effect from three aspects: algorithm.

Camera from Sony

Although Apple has not announced the provider of the main camera to the public, it is found that the main camera of the iPhone 5 is marked with "SONY" after the disassembly of the iPhone 5 on foreign websites, which is inferred to be provided by Sony. At present, Sony is significantly ahead of other manufacturers in the field of mobile camera with "Exmor RS CMOS" back lit CMOS sensor, Exmor R CMOS adopts the back illumination technology that irradiates light to the side without wiring layer, which is contrary to the common method. Since it is not hindered by metal lines and transistors, the opening ratio (the area proportion of photoelectric conversion part in a pixel) can be increased to nearly 100%.

IPhone 5 camera from Sony

The iPhone 4S/5 uses the camera provided by Sony, while the previous iPhone 4 uses the OmniVision camera. Although BSI backlight sensors are used, Sony's underlay technology is much better. Sony's Exmor RS CMOS uses a "silicon on insulator (SOI)" underlay, which is only about 1/30 of the thickness of ordinary CMOS silicon underlay. A thinner underlay will first make CMOS more sensitive (better photosensitivity, higher signal/noise ratio, resulting in a stronger dynamic range), and the thinner underlay will also help reduce the overall volume of the CMOS module. Of course, the cost is several times more expensive than that of other ordinary manufacturers' back lit CMOS. Although this is the case, many high-end mobile phones still choose Sony's camera, such as the iPhone 4S/5, as well as Samsung Galaxy S2/S3, Sony LT26i and other flagship models. In addition, Sony's next generation of "Exmor RS CMOS" adopts a new generation of layered back lighting design, and the effect will be even better.

Sapphire crystal lens

The iPhone 5 camera uses a sapphire crystal lens. With a sapphire crystal lens, the camera will have a clearer picture effect. In addition, the hardness of sapphire crystal is excellent, second only to diamond in transparent materials, which can protect the camera of iPhone 5 from external abrasion and scratches.

Sapphire crystal lens for iPhone 5

HDR function

In addition to the 40% increase in photo capture speed, the iPhone 5's main camera has another highlight: it can take very clear photos in low brightness environments. The iPhone 5 has HDR (High Dynamic Range Imaging) function, which can present users with richer colors and richer colors. The dynamic photos will be clearer than the iPhone 4S, and the image noise reduction has also been optimized.

HDR picture example

Summary:

The improvement of the camera effect of iPhone 5 is related to algorithm optimization, lens, sensor, etc. The integration of all aspects has brought about an overall improvement. Compared with some manufacturers blindly competing with high pixels, the overall improvement of image quality is more meaningful. For ordinary users, it is unnecessary to care too much about pixels. After all, the picture quality of iPhone 5 has been improved satisfactorily.