mortal train conductor

Chapter 175 Passenger Interaction Service Explanation of Security Settings
"There is something particular about taking photos. When I used a SLR camera, I learned it for a long time. Now that mobile phones have appeared, except for some high-end digital SLR cameras, they have killed other cameras in seconds, but the basic principle is still the same. What’s changed, taking photos, it takes several books for you to learn slowly, but through some study and research, I concluded that there are three things about taking photos. If you can master these three things well, then The photos you take must be good photos, and make people look bright."

A passenger next to him said: "You don't need any skills to take photos with your mobile phone. Just put the person in the frame and press the shutter to finish the job."

The middle-aged uncle shook his head and said: "That's not the case. Yours can only be called taking pictures, but mastering the tricks is called photography. There is a difference between the two."

Liu Qun asked from the side: "Three tricks, let's listen to which three."

The middle-aged uncle said: "These three are—light, composition, and decisive moment. As long as you master these three, the photos you take are definitely at the level of photographers."

"Mobile phones now have high pixels and strong light perception, so light doesn't need to be considered for the time being. The main considerations are forward lighting and backlighting. The coordination between aperture and shutter that needs to be considered in SLR cameras in the past is basically unnecessary now. The camera phone will automatically adjust the sensitivity, aperture, shutter, etc. according to the scene environment, and do a good job of programmatic matching. Besides, the current smart phones cannot control these data. The most important thing is composition, composition is very important. "

The middle-aged uncle looked at the passenger who spoke just now and said, "That's what you said, put the image into the frame of the phone, but it's also put into the frame, how to put it is very important, I don't know if you have found the phone The camera function of the camera has a 'composition line' function, and this composition line is the so-called golden section point.

This is the so-called tic-tac-toe composition method, which can divide the picture vertically and horizontally into 9 squares, and use two pairs of vertical and horizontal lines to divide the length and width of the viewfinder into three equal parts respectively, forming a tic-tac-toe and 4 intersections. The subject is arranged to be shot at the intersection.

The golden section has a natural relationship with the composition of the photographic picture. As long as we open some photographers' albums and take a look, we will find that most of the frame forms are similar to this ratio, which is very in line with people's aesthetic habits.

The last point, which is the very critical "decisive moment", refers to the photographer's perfect combination of all factors such as form, idea, composition, light, etc. In the moment of 1 second, or even 1% of a second, the decisive things are summarized and expressed with a strong visual composition.The first one was proposed by the famous French photographer Bresson, whose anthology of photographic works is titled "Decisive Moment". "

While talking, he was filming. "The last pressing of the shutter is also very skillful. Look at me, I will hold my breath when I press the shutter, and try to keep the phone as stable as possible, so that the photos I take will have high clarity."

After taking the photo, he looked at it complacently for a long time, added Liu Qun's WeChat, and sent the photo to Liu Qun.

Liu Qun looked at it, and said to the middle-aged uncle: "Brother, your photography skills are really good, and the resolution of the photos is really high enough. The newspaper held by this passenger is at the lower left corner of the golden section point, and my The face is at the point in the upper right corner of the golden section point, and the two complement each other, well arranged, and the left and right echoes are in place, so that people can see these two points at first glance, and the symmetrical relationship is handled very well.

The middle-aged uncle said: "That's not built. When I took photos, I put in a lot of hard work. There is also a darkroom in my house. I can develop black and white photos at home. At that time, I invested a lot. .

Now mobile phones have swept away all low-end cameras, and everyone calls themselves a photographer. I remember when I hung a SLR manual camera on my chest, and everyone looked at me with reverence wherever I went. Then hang a SLR manual camera out, then in all likelihood, everyone will think that I am crazy or an old antique. "

Liu Qun complimented the middle-aged uncle again: "It's really unusual, but bro, can you send me a clearer picture?"

The middle-aged uncle's smile stopped abruptly, and he asked, "Why is the picture I took unclear? Shouldn't it be?"

Liu Qun said: "It's not that the photos you took are not clear, it's that there is something wrong with your sending program. You sent me a photo of about 600k, so I can't submit it. The pixels are too low. You should send me a photo. Come over with the original picture."

The middle-aged uncle said: "What I posted is the original picture. After this photo is taken, I choose the original picture from the album. Isn't that the original picture?"

Liu Qun hurriedly said: "That's not what the original picture means. In order to save space and improve transmission efficiency, WeChat will automatically compress the picture you want to send when the original picture mode is not selected in order to save space and improve transmission efficiency. It is about 30%, and there will be no problem when viewing the screen of the mobile phone at a normal ratio, but it will be blurred after zooming in.

The original picture I am talking about refers to the picture that was originally stored on the mobile phone and used to send. You need to check the button of the original picture, and WeChat will send the original picture, which is about 2 or 3M in its entirety. Otherwise, WeChat It will be compressed and sent. "

The middle-aged uncle suddenly realized and said: "Oh, there is still this difference. Today I learned another trick. Let me tell you, sometimes it is very clear to zoom in when I receive other people's photos, but it seems that I can't zoom in when I forward them to others. Now, now I understand the reason, and I will choose the original picture mode in the future.”

Liu Qun continued: "But you should also pay attention when choosing the original picture mode, because the original picture mode may expose your personal privacy, such as location information, which will be included in the detailed picture information of the receiver, so it also has certain security risk."

The middle-aged uncle said: "Oh, what's the matter, I'll send it to you, what can you do if you know where I am?"

The two young girls next to him said: "That's not good. Sending your location information to others is really a certain security risk. If you meet a good person, it's better to say that you will use this to make a fuss when you meet a bad person. Listen to Comrade Train Conductor." Having said that, it seems that in the future, when posting pictures to others, you can no longer post the original picture.”

Liu Qun said: "You don't need to be so nervous. If you don't post the original picture, it will make it difficult for the other party to watch it. So today I will teach you a method so that you can post the original picture without revealing your location information." .

For example, on an Apple mobile phone, open the settings - privacy, in the positioning, we find the camera, the two options in it are during use, at this time we choose 'never', and when we take photos again, the geographical location will not be recorded location information.

If it is an Android mobile phone, then according to Settings - System - Application - Camera - turn off the option to save geographical location information, then the photos taken will not reveal the geographical location, and you can share with your friends happily and carefree We sent the original picture. "

When Liu Qun was talking, many passengers around him stood up and listened. Everyone was very happy. This train conductor is a good guy. With so many passengers, he went deep into the compartment to interact with everyone and explain knowledge.

In the happy atmosphere of everyone, Liu Qun continued to inspect the carriage.

(End of this chapter)