👉 In photography, a "semi-exposure" is an exposure value that is slightly less than full exposure. This means that when you take a photo, if there was no light at all from outside the camera's sensor, you would have a low exposure value (less than 1/250 of a stop). However, if there was some light coming in through the camera's lens, it could result in an image with a slightly higher exposure value. This is similar to using a smaller
