Today, photography has become a favorite pastime of young people. When we are in famous internet celebrity places, scenic spots and traveling, speed of camera's appearance is getting faster and faster. But many young people are new to photography and usage rate after buying camera is low, so they use it incorrectly in many places. For example, should we focus first or compose image first, should we use left eye or right eye to look through viewfinder, how can we make camera more energy efficient, should we take pictures in aperture priority or shutter priority. Today we will come to solve your doubts one by one.

Focus first or write first?
When we take pictures, many people don't know whether to focus or compose shot. In past, for example, in era of SLR cameras, focusing system of camera was not as mature and powerful as it is now, not only did it not have automatic focus recognition technology, but number of focus points was not rich. when we use it, we usually focus on desired area first and then compose image by moving camera.
Now camera's focus system has been highly developed, not only number of focus points has become more numerous, but also auto focus recognition technology, focus can even recognize human eyes, animal eyes (cats, dogs, horses, etc.), bird eyes , cars, motorcycles, airplanes, ships, trains, etc. Therefore, when shooting, we recommend that you compose frame first, and then focus.

Actually, it's right to compose composition first, and then focus. Since you move camera to compose image after first focus, it is easy to shift focal plane, which will cause problem of inaccurate or ghost focus. Especially when we use F1.4, F1.2 and other ultra-large aperture lenses, we must first adhere to image compositing operation and then focusing.
In addition, modern cameras support touch focusing, just like shooting with a mobile phone. After composing image, we only need to click on a relatively large area and camera will finish focusing.
Looking into viewfinder with left or right eye
In movies and TV, print ads and camera ads, we all see "photographer" look into viewfinder with right eye, which is why many people think that right eye should look through viewfinder. Moreover, all cameras are designed for right-handed use, and there is no separate camera for left-handers, so this once again confirms saying that right eye looks into the viewfinder.

In fact, although camera must be held in right hand and shutter button pressed with right hand, there really is no standard limiting whether we look into viewfinder with left or right eye. Viewfinder observation is completely determined by your usage habits. If you like to use left eye, you can use left eye, and if you like to use right eye, you can use right eye. There are no restrictions. I myself sometimes see with my left eye, and sometimes with my right.
In addition, many mid-range and budget-class mirrorless cameras do not have a viewfinder design, as it can be lighter, so there is no need to distinguish between left and right eyes when viewing screen.
Should I use aperture priority or shutter priority
This question is mostly asked by beginners who are just starting out. Because friends who do not want to learn photography will use automatic mechanism like a mobile phone, even if they use a camera, but friends who want to start learning photography should choose one of AV (aperture priority) or TV (shutter priority), to start learning. It is not recommended for beginners to use M (manual gear) directly, because all parameters need to be adjusted by themselves, which is too difficult for beginners.

AV (Aperture Priority) basically controls three main parameters: Aperture, ISO, and Exposure Compensation, and shutter speed is automatically determined by camera; TV (Shutter Priority) mainly controls shutter speed, ISO, and exposure compensation. three main parameters, aperture is automatically estimated by camera. In practical applications, aperture not only controls amount of incoming light, but more importantly, it controls image blur effect, so users can better achieve different image styles according to theme. But shutter, beginners have no idea about shutter speed in different lighting conditions, so this parameter is difficult to catch, even experienced photographers may not immediately find right shutter speed. Therefore, for beginners, author recommends starting with AV (aperture priority) to try entry-level photography.
In my experience, in our everyday photography, 90% of scenes will use AV (Aperture Priority) and remaining 10% of scenes will use TV (Shutter Priority). It is used in types of photography such as panoramic shots.
How to make your camera more energy efficient
Cameras are now aiming for a lightweight design, so many people's batteries are relatively small and battery life will be shortened. Especially card cameras, APS-C format mirrorless cameras and so on. If you don't want to spend more money buying a spare battery, you should learn how to save power for your camera when shooting every day.
Saving energy is actually very simple, just remember following points.
1. Do not turn on and off frequently
Generally speaking, turning it on and off consumes more power. It's better to set a sleep time in settings so that camera can be put to sleep right every day and you only need to press shutter time when you use it.
2. Don't play photos or delete photos if nothing happens
When traveling or shooting, do not view, view or delete photos frequently as this will waste a lot of power. After we finish shooting, we will only need to play and review once, and we can delete photos after shooting is over.
3. Reduce flash usage
Many cameras have a built-in flash. Except in very dark scenes, it is recommended to disable this flash.
4. Reduce unnecessary operations
Many people will have a lot of unchangeable operations in process of shooting, such as checking settings for nothing, half-pressing shutter button to focus, but not shooting, which will keep focus system and exposure meter system working for a while, so more energy will be wasted.

What we have presented above is mainly due to misunderstandings that easily arise when taking photographs and using cameras. Many beginners will be confused when using them because they are not familiar with photography and cameras. With our introduction, we hope to help newcomers to photography become more familiar with camera and get started with photography faster. If you have other questions, you can leave a message in comments and we will publish a separate article to answer your questions.
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