What are color temperature, resolution, pixel, ISO, depth of field, white balance and aperture?

Color temperature and white balance are the same, that is, different light sources have different color temperatures, which are generally expressed as 9000 K \ 4500 K For example, different ambient lights such as sunlight, incandescent lamps, fluorescent lamps, sunny days and cloudy days need to adjust different white balance modes. If it is wrong, there will be color cast.

Resolution refers to the fineness of an image, and the unit of "pixels per inch" is pixels per square inch. 72 is enough for display and web page pictures, and more than 300 can print photos.

ISO is the sensitivity, that is, the sensitivity to light. A high ISO will keep the photos bright enough in low light. Increasing the shutter speed is generally used when the light is insufficient and a high-speed shutter is needed, but it will affect the image quality. Generally, there will be noise, and it will be black or color when it is put in 100%.

Depth of field refers to the difference in clarity between foreground, background and subject. For example, most portraits use shallow depth of field, so that the characters are clear and the background is blurred, which is very prominent compared with the main characters and the background will not be chaotic. Large aperture and long distance will affect the depth of field.

Aperture is the size of the lens opening and closing. The larger the aperture, the greater the amount of light entering. But at the same time, the shallower the depth of field. Aperture and shutter speed * * * jointly affect the amount of light entering and determine the color brightness of the photo.