1. The problem statement, all variables and given/known data I did an experiment with a convex lens, object, and image. As the lens moved farther and farther away from the object, the image decreased its distance (to remain in focus) from the object as well up to a certain point. After that point, as the lens increased its distance from the object, the image had to increase its distance from the object as well to keep in focus. Why is this? 2. Relevant equations N/A 3. The attempt at a solution It's a theoretical question with no exact solution.