Good morning, I am Ye Zi, today is the 2067th day of photography morning self-study to accompany you.
Today we will continue to talk about the issue of color castration, because many students asked good questions, which are very representative. For example, a classmate named "Simple" said: Teacher, I exposed the correct photos on my computer, and it was very dark on my phone. Then "Ruiweng" also asked the same question. What's going on? Let’s analyze this matter from three aspects.
First of all, the brightness display ability of the screen and the screen is different. For example, Xiaomi has a new mobile phone called Xiaomi 13 Pro, right? I have one here. I was very impressed. It was trying hard to say at the press conference that my screen was very good, my screen was brightest 1200 nits , and then the peak brightness could even reach 1900 nits. Look, what it means is that not every mobile phone can be as bright as me. Do you have this experience? When you are taking photos outside with your phone, as long as it is sunny, you will always be unable to see what is displayed on the screen, and you always feel that it is a bit dark, right?
Photo by Patrick Ward on Unsplash
So the brightness of the mobile phone screen and the mobile phone screen is different, let alone the mobile phone screen is compared with the computer screen. How do you compare this matter, right? So the first thing is that you have to try to adjust the brightness of your phone screen and the brightness of your computer screen , let the two screens display the same photo, and then turn the two to be the same bright, I mean to make the photo as bright, and then remember these two values. For example, if the phone is turned on to 80%, and the computer is turned on to 60%, these two photos are the same bright, so remember the two values. When you want to compare in the future, compare under this prerequisite. OK? Don’t say that both of them are opened to the top before comparing, it doesn’t make sense, because the two screens are different.
Photo by Siednji Leon on Unsplash
Then the second issue you need to consider is the viewing environment. For example, a computer looks bright on your desk, but it will be eclipsed instantly when you get the sun. But the same mobile phone screen looks quite dark, and it can blind you as soon as it is taken into the quilt. Why? Because when the ambient light is particularly strong or weak, your pupil size will change. For example, in the quilt, your pupils are huge, like a cat, and you try hard to capture the light around you. When your phone screen is turned on, you must not blind your eyes. Therefore, whether it is bright or not is a relative value. If you want to compare the brightness, you must compare it in the same environment to make it more rigorous.
The third one I must remind everyone is: Did you put on the film? The anti-peeping film on the phone seriously affects the brightness, clarity and color accuracy of the picture, so tear it off and replace it with a high-definition transparent film. There is another type of anti-blue light film that is more popular now. After sticking it on, the entire screen turns yellow. Why bother? You throw that away quickly and then change it to a high-definition transparent film. Why? Because as photography enthusiasts, we buy a new mobile phone and immediately make its screen ruined, and we can only display a yellow color. How can you still play photography, right? So you can't do that. If you really want to protect your eyes, it is most important to look at the screen less. Then you can also turn on the anti-blue light mode in the mobile phone system, such as the night view mode. After turning on that, it will actually automatically suppress the blue light emitted from the mobile phone screen, and it can also prevent blue light, but don’t use a yellow glass to put it on your screen, this is simply terrible. So we don’t cast color, but it actually includes the element of brightness that is not biased. However, we check the problem from the above three angles. Let’s see if the display ability of the screen itself is different, my viewing environment is different, or if I have a film that causes the picture quality of a screen to be damaged.
Then if you understand this basic principle, you will find that the question asked by "Ruiweng" is actually problematic. He said: Teacher, because the photos on my computer will become dim after adjusting them and putting them on my phone, so I have to make second adjustments in my phone. Alas, what is his problem? It's because you don't know whether your computer screen looks more accurate or your mobile phone screen looks more accurate, so you have to figure out who is the standard to adjust the film. Suppose you have a more accurate computer screen, and your mobile phone screen is not accurate, then the second adjustment of the movie you use the mobile phone screen as the standard, are you satisfied after adjusting it? Don't you think this is a paradox? Because when you send this photo back to the computer, it will be too bright and too bright. So I suggest that you first strictly calibrate the computer screen through the method we mentioned yesterday. After calibration, the computer will be the only way to adjust the film in the future. If the phone looks wrong, hurry up and look for the problem with the phone. You don’t have to change it, but you must at least adjust the display results of the phone screen. If the mobile phone system supports it, you can also adjust the display results of your mobile phone screen directly on your phone to get it closer to the computer screen.
Datacolor Spyder Color Calibrator Picture source: Datacolor official website
Add a little knowledge. The Datacolor Spyder color calibrator we introduced to you in morning self-study yesterday can actually detect the brightness of the surrounding environment and recommend the correct brightness of a screen based on this. When you adjust the brightness of this screen to a correct value it thinks, it will tell you: In this way, when it comes to this brightness, the brightness you see is basically correct, so it solves the problem of the first and second problems we just mentioned.
So there is actually a lot of knowledge about color management to teach you slowly. Don’t worry, let’s talk about it tomorrow, okay? But no matter how much I talk about, there will never be so systematic and detailed in my class. Therefore, the photography course " Free Photographer Plus" is still in " Reading Original Text ". Students can click it to learn more.
Today is the 2067th day of photography morning self-study with everyone. I am Ye Zi. Every morning at 6:30, the WeChat public account "Photography morning self-study" will never end.
