In this article, I'll share a technique that I learned many years ago and that I still use occasionally. You can use it for removing people from a scene, but in this case, I will be using it to mimic one of a neutral density (ND) filter's main purposes: longer exposure.
It's more and more difficult these days to photograph places without crowds or cars. One of the strategies that can help achieve that is to wake up early and be there at sunrise, but in very popular places, there will be other photographers with the same idea as you. So, how can we take a picture of a scene without this crowd?
This may look like an ordinary photo of an orchestra, but there's something special about this shot: it's a clone photo in which every one of the 100 musicians in the frame is the same person.