can someone explain to me what this youtuber did? https://www.youtube.com/watch?v=j8xQ8WiI7rk at 6:07 he takes a picture that’s overexposed and after he uses the exposure compensation dial to take a picture with the right exposure ​ now first question, all the camera did is lower the iso, he could’ve easly done it himself, whats the advantage of using the “exposure compensation dial”? second, i…