The camera takes pictures

Answer 1

The following are a few things to pay attention to when taking pictures with a camera:

* * 1. Aperture of the lens **
1. * * Aperture selection and image quality **
- Different lenses had different maximum apertures. For some low-quality lenses, such as 50mm f1.8, the maximum aperture may not be suitable. The image quality would be much better if the aperture was set at two levels. For high-quality lenses, such as 70 - 200mm f2.8 and 50mm f1.4 (new model), the maximum aperture could be used, but when the maximum aperture was used, the chances of the image flipping would increase.
- Shooting with the largest aperture was prone to blurring the picture. First, because the depth of field was shallow with the large aperture, the camera's movement would cause the focus to deviate from the original focus point when focusing first and then composing the composition. Second, some lenses (such as the Sima lens) might run out of focus at the largest aperture, but after two apertures, they might not run out of focus.
2. * * Aperture and depth of field effect **
- A large aperture would produce a shallow depth of field effect. If you wanted to highlight the main body and blur the background, you could choose a larger aperture, but you had to pay attention to the risks mentioned above. A small aperture had a large depth of field, and the front and back scenes in the picture would be clearer. It was suitable for shooting scenes that required overall clarity, such as scenery.

* * 2. Shutter Speed **
1. * * Safety Shutter Calculation **
- Normally, the safety shutter was calculated by the inverse of the focal length (1/focal length). For example, if a 200mm lens was used, the safety shutter would be 1/200. However, it was generally believed that as long as it could guarantee 1/250 seconds, there was basically no need to be afraid of using any lens, and the basic safety shutter was 1/50.
- It was best for novices to keep the shutter time at 1/300 seconds to reduce the blurring of the picture. Old drivers might use the safety shutter within 1/10 second under extreme conditions such as poor lighting conditions, but in this case, every shot had to be zoomed in for inspection because the overturning rate was very high.

* * 3. Focus related **
1. * * autofocus problem and solution **
- Although the autofocus mode of the camera was very strong, there were still cases of overfocusing. For example, under the backlighting, too much light would disturb the autofocus system, and the lens might keep pulling the bellows, making it difficult to focus. Even if the camera was barely focused, the picture might not be clear. The solution was to focus on the location of the subject (such as a jumping person), press the shutter halfway, and then press the shutter when the subject reached the appropriate position.
- When the lens 'closest focus distance was exceeded, the autofocus system would fail, and the photo taken by pressing the shutter forcefully would be blurred. When shooting flowers or macro scenes, it is recommended to use manual focus to get clearer photos.

* * 4. Different camera equipment features (some equipment can be used for both video and photo)**
1. * * Fuji XT5 **
- The advantage was that there were many filter, the film had a texture, and the appearance was high. The 18 - 55 was enough for beginner players. The disadvantage was that although the screen could be folded, it could not be folded into selfie mode. It was difficult to focus and easy to lose focus, which was not suitable for novices.
2. Canon G73
- The advantage was that it was small and light, suitable for recording vlogs or taking photos. The operation mode was simple, and novices could easily master it. The disadvantage was that its endurance was relatively poor.
3. * * Canon A550 (CCD-camera)**
- The advantage was that as long as the flash was turned on, it would look good no matter how you shot it. The film had a certain style. The disadvantage was that after shooting with the flash, the reaction time was very slow in an overly cold or overheated environment. It required five seconds to wait, and the battery life was short, usually only one to two hours.
4. * * Fuji F40 (CCD-camera)**
- The advantage was that it was smaller and lighter than the Canon A550, and it had a higher appearance value. The photos it took came with a soft filter with warm colors, giving it a sense of atmosphere. The disadvantages were similar to the Canon A550, including slow response and short battery life.
5. * * Film machine (such as the street sweeper film machine of the same model)**
- The advantage was that film lovers could experience the feeling of film shooting, and the price was cheap (such as 100 yuan). The disadvantage was that it was difficult and costly.
6. * * Single use film camera **
- The advantage was that it was cheap (about 100 yuan) and could experience film shooting. The disadvantage was that the number of shots was limited. It would be used up after 20 clicks, and there was no chance to redo it.
7. * * Fuji Mini 7C (Polaroid)**
- The advantage was that it was suitable for giving gifts, and there was a tutorial to take good photos. The disadvantage was that it was not suitable for many people to use. It was easy to expose it unevenly, and there would be a situation where all the people behind it were little black people.
8. * * LOMO Polaroid **
- The advantage was that the lens could be replaced. For example, the macro or fisheye lens could take more creative photos, and the appearance was good (such as the pink, blue and green color matching).
9. * * Phone (such as XSMax)**
- The advantage was that it was convenient. It had a self-sharpening effect and no lens distortion. It could take high-definition photos with texture and atmosphere. The disadvantage was that when the lighting was not good, the recording effect would be low-resolution.
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