Why does the Apple X camera become 5x?

Looking at the development history of home digital cameras, the last decade should be the most rapid development era. From the early pocket DC to the digital SLR that entered the general public, and then to the emerging micro-single camera, with the passage of time, users can choose more and more camera types.

Among ordinary digital cameras, the advantages of large zoom cameras are very obvious. The larger the zoom ratio, the wider the focal length coverage. For users, they can get almost full-focus shooting ability without increasing the cost, especially under some special shooting themes, such as outdoor ecological shooting, performance shooting, sports scene shooting and so on, and get excellent results.

What is the optical zoom in a digital camera? /kloc-What's the difference between 0/0 times and 5 times?

The English name of Optical Zoom is Optical Zoom, and digital cameras rely on optical lens structure to achieve zoom. The optical zoom mode of a digital camera is similar to that of a traditional 35mm camera, that is, the scene to be shot is enlarged and reduced by moving the lens. The larger the optical zoom coefficient, the farther the scene is photographed.

When buying a digital camera, many users will ask, what is digital zoom and what is optical zoom? Below, we will use the chart to illustrate.

Optical zoom is achieved by changing the position of lens, object and focus. When the image plane moves in the horizontal direction, as shown below, the visual field and focal length will change, and the farther scenery will become clearer, making people feel that the object is moving forward.

Obviously, there are two ways to change the perspective. One is to change the focal length of the lens. In photography, this is optical zoom. The focal length of the zoom lens is changed by changing the relative position of the lens. The other is to change the size of the imaging plane, that is, the diagonal length of the imaging plane. In today's digital photography, this is called digital zoom. In fact, digital zoom does not change the focal length of the lens, but changes the viewing angle by changing the diagonal of the imaging plane, thus producing an effect equivalent to the focal length change of the lens.

It corresponds to digital zoom, which is a software means to enlarge pictures on a computer. It is the same as digital zoom, except that the program in the camera does the enlargement work done by the computer. A picture is blurred when enlarged, so digital zoom has no practical significance. Different optical zoom multiples mean different maximum focal lengths. For example, a camera with a minimum focal length of 35mm will reach 350mm after magnification of 10, which is a long focal length. The long focal length acts as a telescope. Telescopes are useful, but they can take pictures. You can shoot distant scenery, such as wild animals, such as birds in trees. Because people can't get close, they are either injured or fly away when they get close.

Recommended: 8 x optical zoom, Sony W730 digital camera.

Excellent picture quality keeps warm moments.

It is essential for relatives and friends to get together and take photos during festivals, and a digital camera with convenient operation and clear image quality is essential. Sony W730 digital camera is equipped with 1665438+ effective pixel Super HAD CCD. High-resolution CCD can not only clearly record wonderful pictures, but also smoothly reproduce rich layering when printing large-size photos. W730 digital camera with 8 x optical zoom and 25mm wide-angle lens can help you realize your shooting wish in a limited space. At the same time, through face recognition and smiling face shutter, it is convenient for you to capture the warm moments when all relatives and friends are smiling.

Features: 1665438+ megapixels, 2.7-inch screen, 8 times optical zoom, 25mm wide angle, photo effect, smiling face snapshot, double anti-shake, intelligent scene, high-definition video recording, panoramic mode, portrait self-timer and skin-beautifying mode.