What letter is the aperture?

The aperture is represented by f, the larger the number, the smaller the aperture, and the apertures at all levels are logarithmic. Supplementary speed. F5.61100 seconds. F8 1/50 luminous flux is equal. Aperture is a device used to control the amount of light entering the photosensitive surface of the fuselage through the lens. It is also an extremely important index parameter of the camera, usually in the lens.

Focal length is a measure of light convergence or divergence in an optical system, which refers to the distance from the center of the lens to the focal point of light convergence. It is also the distance from the center of the lens to the imaging plane such as the backplane or CCD in the camera. An optical system with a short focal length has a better ability to collect light than an optical system with a long focal length. Simply put, the focal length is the distance from the focal point to the vertex of the mirror.

How do novices learn photography?

There are two kinds of beautiful night shots: tripods on the landscape. If you hold it, you can open the aperture, prevent hand shock, raise the ISO, fill the light with lights or run the training room frequently. With the above conditions, every camera can shoot at night, but in order to avoid the suspicion of industrial and commercial service, I won't admit that I persuaded those strong friends who lost their legs, large aperture lenses, lights or hands.

This question has the same meaning as Morgan Ferguson's role as a black man in this film. To put it simply, if your brain is not well equipped, you can win the super run by driving 86. If you have equipment but your brain is not good, the equipment can be out of focus. The value of a photographer always lies in his ideas and composition. Just look at the winning works of the mobile phone photography contest.

Of course, it is your family's business that your pocket likes to go straight up and down. Otherwise, according to my photography experience, I'd better start by taking more pictures and appreciating more works, and maximize my camera and bank account, so that it's not too late to change it if necessary in my future work.