Grainy pictures, also known as noisy pictures, are images that have a rough, speckled appearance. This graininess can be caused by a number of factors, including the camera’s sensor size, the ISO setting, and the amount of light available. While some graininess can be desirable in certain situations, it can be distracting or even ruin a photo if it is too pronounced.
There are a number of things you can do to avoid grainy pictures. One of the most important is to use a camera with a large sensor. Larger sensors are able to capture more light, which results in less noise. Another important factor is the ISO setting. The ISO setting controls the camera’s sensitivity to light. A higher ISO setting will make the camera more sensitive to light, but it will also increase the amount of noise in the image. If you are shooting in low light, you may need to use a higher ISO setting, but be aware that this will likely result in some graininess.