What does iso mean when taking pictures?

In photography, ISO refers to the sensitivity of the camera. In a digital camera, the sensitivity of the camera can be controlled by ISO setting. In general, the higher the ISO, the more noise there will be in photos, which will affect the quality of photos. However, in the low light environment, properly improving ISO can make the image brighter and solve the problem of too dark photos. Therefore, ISO is a parameter that needs attention. Photographers need to set ISO reasonably in different scenes to make photos more in line with shooting needs.

the level of iso will affect the sensitivity of photos. When the ISO is higher, the photosensitive device of the camera will be more sensitive and capture more light information, so the photos taken will be brighter, and the shooting effect can be ensured in a relatively dark environment. However, high ISO can also produce noise, which is a very common problem in taking pictures, especially in low light situations. If you want a better photo quality, then you need to lower the ISO to get a better photo quality.

how to get suitable ISO photos?

In photography, how to set an appropriate ISO value is very important, which depends on your shooting needs. Generally speaking, no matter what kind of camera you use to shoot, you just need to ensure that the quality of the photos is good enough. If you take pictures of people outdoors, then ISO64-128 can meet your needs. However, when you are taking landscape photos, you can set the ISO value to 1 or 2 to get colorful photos. Of course, this is only a rough range, and the specific shooting scene needs to be adjusted according to your own needs. Only by mastering the appropriate ISO setting method can we get very accurate photo information in shooting.