Photo has been one of the most important function of mobile phone. In the era of functional machine, vendors have been trying to keep the cell phone with rival the imaging quality of digital camera. At that time, the most effective way is to put the camera with the parts to mobile phones. But because of my poor portability, this wonderful work phone did not become the mainstream. The fierce market competition, keep the cell phone camera technology has made considerable progress, although the internal space of the camera is so small. Back according to the type of CMOS, 6 p lens structure, large aperture. Among them, already has a mobile phone use F1.8 aperture of the camera. Don’t phone finally catch up with the camera? Today we will talk about together to mobile phone aperture of those things.
First of all, what is light? To make good lens, we can not arbitrarily change the diameter of the lens, but we can do inside the lens to join a polygon or rounded, and area of the grating of variable to control the camera light, the device is called the aperture. The aperture size we use F value, the greater the F value, the smaller the aperture. The role of large aperture: enter more light But the same F1.8 aperture, cell phone camera and camera lens or have significant difference, because diameter has a bowl. F value = the focal length of the lens/lens light hole diameter.
According to this algorithm, the current physical distance of 4 mm camera phones, aperture F1.8, its light hole diameter is 2.22 mm; And the focal length of a 50 mm lens, aperture F1.8, its light hole diameter is 27.7 mm. Obviously, the former through the brightness is not and the latter. Although not giant lens and volume, but also as a mobile phone camera, F1.8 aperture than F2.0 aperture into more light. Larger aperture means that the same environment, the photos will become brighter, especially under low light environment to help will be more obvious. The role of large aperture: faster shutter speed Photography fans know, the brightness of the picture can be controlled through the shutter, aperture and ISO, and improve the ISO tend to increase the noise. Under low light environment, we usually by large aperture or slower shutter speed to achieve the desired image brightness. And slow shutter speed to take a picture of the jitter, especially for mobile phones, first from the light.
Mobile phones more and more mainstream, whether you like mobile phones, come and join us!
This article from OS-STORE.
