Shulou(Shulou.com)11/24 Report--

Out of their love of photography, or out of a hot mind, many friends bought SLR or micro-single (no reverse). The new machine is in hand, but it doesn't understand the buttons and functions. It only uses automatic mode to shoot, and adjusts the parameters according to the feeling every time. Want to read the instruction manual, the camera manual is as much as the content of a book, but also some professional terms, really can not read.

Today we will talk about some basic and commonly used functions of the camera, which can be used quickly after watching it.

01. Be sure to focus before taking a photo. Where the focus is, it is clear.

The focus mode is divided into "AF" and "MF". This switch is on the lens.

When you focus manually, you have to turn the focus ring on the lens, and the distance of the focal plane will change, and you can choose from the nearest tens of centimeters to infinity.

When autofocus, the camera will focus itself, generally speaking, the closer to the center of the picture, the more obvious the object, the easier it is for the camera to automatically choose as the focus.

There are also many modes of autofocus, which basically have these functions: one is the word, which does not change after focusing, and the other is dynamic. After focusing, if the photographed object moves, the focus will follow.

Generally speaking, the more expensive the camera is, the more efforts will be made in the development of autofocus. The aim is to make the camera focus fast and accurate, and it will not run out of focus when it is matched. Read the instructions.

02. The place where the depth of field is focused is clear, and it begins to blur outside the focus. If it is too far from the focus, it may be so blurred that it cannot be seen clearly. A clear range can be called depth of field, and the smaller the depth of field, the more obvious the virtual.

03. After the exposure is in focus with the ATSM file, you can press the shutter button to click to take a picture. In general, everyone wants to take pictures with normal brightness, not too bright or too dark, which are determined by aperture, shutter and sensitivity.

File An is the aperture priority mode, the aperture can be adjusted manually, and other parameters will change automatically. If I shoot a model and want the background to melt away, I need a large aperture to maximize the aperture. After the aperture becomes larger, in order to ensure normal exposure, the camera will automatically adjust the size of the shutter and sensitivity.

T and S files are shutter priority modes, the shutter can be adjusted manually, and other parameters will change automatically. If I shoot a motorcycle, and the motorcycle is very fast, I will raise the shutter to about one of the 1max 2000. In order to ensure normal exposure, the camera automatically adjusts other parameters.

M file is manual exposure, manual adjustment of the value, generally can be used automatically, automatically can not solve the problem, only use manual. Manual can not be solved, with the help of props, flash, dimmer.

04. Exposure compensation although the aperture shutter can affect the exposure, did you find that in the aperture priority mode, although I changed the aperture, the camera automatically adjusted the shutter value in order to get a normal exposure.

If I don't want the exposure and I want to make it brighter, increase the exposure compensation, such as + 0.5, + 1, and so on. By increasing the exposure compensation, the camera will automatically adjust the shutter and sensitivity values in order to get a brighter exposure.

Therefore, exposure compensation is also through the aperture, shutter, sensitivity to change the brightness. If the M file is used, the exposure compensation will fail.

Focal length and equivalent focal length are for the lens, and the focal length can change the view range. Popular understanding, like a telescope, can narrow the range of view (enlarge the picture). For example, I was able to view a flock of sheep, but now the range is as small as a sheep, or it can be understood as magnifying a sheep to fill the entire camera screen.

The focal length of the lens can change the view range, and the size of the camera's photosensitive element can also affect the view range. The same focal length, used in different frames of the camera, the range of view is also different.

In order to unify the description, the term "equivalent focal length" appears. "equivalent focal length" is the actual focal length of the lens installed on a full-frame camera. For example, I have a focal length 18mm lens. I used it on Canon's half-frame camera with a focal length conversion factor of 1.6. in the end, the equivalent focal length of this 18mm lens on my camera is 18*1.6=28.8mm.

The equivalent focal length of smart phone is generally about 26mm, and the equivalent focal length of ultra-wide angle of mobile phone is about 17mm. 50mm lenses are called standard lenses and are often used to shoot portraits. Ultra-telephoto lenses such as 400mm and 800mm will be used to shoot the moon.

This article is from the official account of Wechat: photography Research Society (ID:shoujiPhotography), by Zhang Xiaozhang.

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