To help with that, I've prepared a collection of 22 light leaks that you can use for free right away. So, how do we go about adding realistic-looking light leaks to our images to get that vintage feel? Easy, just overlay an image of a light leak on top of the image in a retouching software like Photoshop. That's a little bit similar to how vinyls are still appreciated today. Obviously at first light leaks were undesirable, but now in our world of digital photography and pixel-perfection, we've come to appreciate how imperfections can add life and soul to photographs. It happens when some light can make it into the camera through a small gap in the camera chamber and over-expose the film in specific areas that look like streaks.
Light leaks are imperfections seen in photos taken with old film cameras.