Traditional Culture Encyclopedia - Photography and portraiture - What do you mean by wide angle, telephoto and maximum aperture?

What do you mean by wide angle, telephoto and maximum aperture?

Explain what wide angle and telephoto are first.

When you press the zoom lever of the camera, you will find that the picture in the camera will change. You can see more things at one end, but the main body is not prominent. This part is usually called the wide-angle end (represented by the letter W or the icon of three small trees on the machine). When you push the zoom lever, you will find that the picture begins to focus on a subject, and the viewing range becomes smaller, but the subject begins to protrude. This end is called telephoto end (represented by the letter T or small tree on the machine)

The maximum aperture refers to the maximum aperture that the lens of this machine can reach. The larger the aperture (the value is represented by the letter F), the more light enters, and the corresponding lens will become thicker. It should be noted that the larger the aperture, the smaller the number. For example, F2.8 is a large aperture, and F 1 1 is a small aperture.

You can see all the above data on the lens of the camera. For example, 7.4-44.4mm, 1: 2.8-4.8 indicates the maximum aperture value of the camera (2.8 at the wide-angle end and 4.8 at the telephoto end).

At present, the better rumen and digital SLR are Sony a200 and 350, Nikon D40x and Canon EOS 450d. I suggest buying Sony's a350. Its sensor quality is high, the screen is turned over, and the operation is relatively simple, which is suitable for entry-level users.