There’s one simple solution to the problem of grainy photos: turn down your ISO setting. Your camera’s ISO setting controls how sensitive it is to light, and the higher the ISO, the more grainy your pictures will be. The best way to decrease grain is to turn down the ISO setting, but this can’t be done every time. Some cameras produce grainy photos even when the light is optimal.
If you’re still concerned about grain in your photos, there are a few things you can do to fix the problem. In some cases, increasing the exposure will reduce the grain in your photos. You can also try shooting at a higher ISO, but keep in mind that raising the ISO will create more digital noise. The best solution is to use a low ISO and manually adjust the shutter speed. If the problem persists, try to shoot in manual mode.
If your photos look grainy, the issue might be the camera’s sensor. This sensor translates light into pixels, which are inaccurate when heated. Digital noise, or noise in the camera’s sensor, looks like speckles on your photos. The problem usually occurs when you’re shooting dark scenes. Your camera doesn’t want to wash out dark scenes with a flash, so it compensates by raising the ISO, making your photo look grainy.