Traditional Culture Encyclopedia - Photography major - How to take clear and textured photos?

How to take clear and textured photos?

First of all, sharpness refers to the depth of field, the clear range within a certain distance before and after the focus.

There may be three reasons why the subject (focus position) is not clear enough:

1, the shutter speed is too low, lower than the safety shutter. The safety shutter is determined according to the lens used and the subject. Generally speaking, try to be quick. )

2, camera shake, resulting in blurred images. You can shoot with a tripod or practice with a camera.

3. The subject is in a dynamic state.

It says that the subject is clear. If you want to make the whole picture clear, there are two important reasons:

1, the aperture is too large. Turn down the aperture, and the whole picture will be clearer. Optimum aperture F8 F 1 1 F 16.

2, the focal length is too long or fixed focus. If you use a small focus of 50 1.8, the depth of field is easy to be small, that is, the background and foreground are easy to blur. Especially when your camera is close to the subject, such as your first photo.

I want the whole picture to be very clear: lower the aperture, use a wider focal length (even if you set the focal length), and keep the camera away from the subject.

Texture is the detail and level of the picture. For example, the coldness and hardness of steel, the softness and warmth of silk, the toughness of cowboys and the silky silk scarves are all manifestations of texture. Texture means that people can feel the truth when they see photos, just like the feeling that things are within reach. Seeing pictures of textured food makes you hungry, and children want to pinch and kiss with tender faces.

So how to get the best texture? There are two suggestions for your reference:

1, light. Light is the soul of photography! Light is in the hands of a photographer, just like a brush in the hands of a painter and a carving knife in the hands of a sculptor. The formation of texture is composed of countless different points, lines and surfaces. How are countless points, lines and surfaces formed? Very light! ?

Light outlines points and lines through light and shade, and shapes the texture and details of the picture through soft and hard. It can be said that the texture of photos is mostly determined by the light.

How does light affect texture?

In fact, it is a question of how to choose light and how to choose light distribution.

Just these two days, I talked about the basis of light in class, so tell me more.

1) Select the appropriate light texture according to the texture of the object. There are two kinds of textures here, don't confuse them. Let's talk about the first one: the texture of the object. Leather goods are hard and plush toys are soft. Let's talk about the second one: light is also textured. Direct light is hard, such as the sunshine at noon on a sunny day, with great contrast and shadow; The skylight on a cloudy day is very soft, with almost no contrast and no shadow.

Choose the texture of the light according to the texture of the object. Such as: hard objects (steel, leather goods, cowboys, men. Wait. ), then the light is best to choose hard direct light. If the object is soft (silk, gauze, children, girls, etc.). ), then it is best to choose broad and soft light, such as scattered light and transmitted light.

If artificial light is used indoors, the standard cover belongs to hard light and the soft light box belongs to soft light. When soft light is selected for natural light, you can shoot in shadows or cloudy days.

2) Say light level. Light level: the position of the light source relative to the subject. Imagine the shape of a clock, with the main body in the middle and the photographer standing at 6 o'clock. When the light source is at 5 o'clock or 7 o'clock, the angle with the camera is 30 degrees. The greater the angle, the greater the contrast and vice versa. (Simple description, people who understand are more real)

Moreover, the performance of the picture texture is different with different light levels (of course, this is not the only reason). For example, a large angle has a stronger texture and is suitable for shooting tough objects; When the included angle is small, the texture is weak, which is suitable for shooting soft objects.

If the left-right angle exceeds 90 degrees, it belongs to side backlight and backlight. At this time, it is necessary to have an auxiliary light source in front to supplement the details and levels of the dark part.

Backlight is a very good way to express texture, but it needs light in front to express dark details. That is to say, the light ratio (light-dark ratio) should be controlled. Obviously, the photo of the subject does not add details to the front, so the light ratio is too large, and many details are missing (seriously underexposed), let alone the texture.

In addition, if it is pure backlight, create more atmosphere or atmosphere.

2. camera. In addition to light, the second biggest influence on texture should be the camera. Let me repeat the same two aspects one by one.

1) A good camera will have a better texture. That's for sure. Because pixels and image sensors are different in size, the level of detail will be different. But this is definitely not to say that ordinary cameras can't take pictures with good texture, so don't seriously argue about this issue. I usually like to take pictures with my mobile phone, and I can still have a sense of texture.

2) Camera settings. Mainly talk about the setting of photo style (Canon photo style, Nikon optimization standard). In the photo style, there are sharpness and contrast options. When you need a tough texture, you can appropriately increase the sharpness and contrast, not too much. On the contrary, when taking photos of girls, children and other soft clothes, they can all be reduced. If you want to finish it in the early stage, but you don't want to finish it in the later stage or you can't finish it in the later stage, you can set one-time completion like this. The reasons are as follows.

In fact, objectively speaking, it is not recommended to set this item. I never ask students to adjust this item, except in special circumstances (such as wanting to finish it at one time in the early stage and not wanting to do it in the later stage). Because this adjustment can make the photos look good, the details are sharp or tough, but it will affect the picture quality. The best setting is nothing. Use the default sharpness of 3, and the rest can be centered. The more original the picture in the early stage, the better, and the greater the possibility in the later stage.

If you play the RAW format, so much the better. Just study the focus, exposure and white balance, and you don't need any settings. When converting with LR, the photo will light up as soon as it is tuned! ! !

The following focuses on answering some common photo questions:

1. Technical reason: inaccurate focusing &; Aperture setting is too large

Considering your lens, I suggest that the aperture be lowered by one gear and two gears. Except with a tripod; In addition to shooting still objects. On the contrary, it is difficult. In addition, try to speed up.

2. The reason for running out of light: the ratio of highlights to shadows is wrong, which has been explained in detail above.

3. Equipment reason: the lens is mainly a penny. If it is too cheap, there is no good lens. A good lens is inconvenient and convenient.

4. Later reasons: jpeg pictures were made directly, and LR and PS were mainly used later (I felt that jpeg pictures saved by PS were dirty).

I don't know what format your camera is. If the camera is set to JPG format, it will be meaningless to convert it to JPG format. In addition, the image quality saved by PS will not be different from LR. The best quality for storage should be 12. In addition, if you have time and energy to play photography, it is recommended to shoot in RAW format, then adjust it with LR and save it in TIFF format. TIFF is the most professional picture format, and the texture can be said to be the best. But correspondingly, it takes up a lot of space and is inconvenient to check and operate. Need patience.

If it's a preliminary problem, what should I pay attention to when shooting?

The previous question was mentioned above.

If it is a late problem, what should I do later?

Post-problem: No matter whether PS or LR is used, the sharpness should not be increased too much. The landscape category can be increased by about 100, and the portrait category can be between 50 and 80. In addition, you can find some noise reduction filters.

PS:

1. Smart photographers don't let the camera automatically process too many things. Especially clarity, contrast, etc. But in the later stage.

2, the time reason is not mapped, please understand. I hope it won't affect everyone's understanding.

3. If you have different opinions or improper points, please correct and discuss them.

4. I hope everyone will support me a lot! Thank you.