ISO essentially refers to your camera’s sensitivity to light. Raising the ISO will increase your camera’s sensitivity and lowering the ISO will decrease the camera’s sensitivity. Therefore, it can logically be concluded that lowering the ISO will darken the image and raising the ISO will brighten the image. However, raising your ISO may not be the best method for brightening your image, because it can cause other problems with the image.
Native ISO is the optimal ISO to use with your camera. This will often be the best ISO to keep your camera at, though it may need to be adjusted due to your environment, the scene, and your specific needs.
What ISO Results In
Though ISO is capable of brightening your image, it can also introduce a significant amount of noise to the image. This occurs because increased sensitivity to light will lead to catch subtle variations and inconsistencies in the lighting, which will lead to the increased appearance of noise.
How to Find your Maximum Usable ISO
The maximum ISO setting that you can use without introducing noise will vary based on your specific camera. Consulting YouTube reviews is a convenient way to obtain a general idea regarding the maximum ISO that you can use. Otherwise, experimentation will be the best way to help you determine the maximum usable ISO for your camera. If you obtain a new camera, you will have to find your new maximum ISO.
ISO can help brighten an image, but it may be necessary to use other methods when you need brightening. These methods may include additional lighting in the environment or adjusting other settings. To learn more about the ISO on your camera and how adjusting it can impact your image, contact us at Robin Hood Studios today!