One would say that shooting portraits with a 400mm or 500mm lens is overkill. Absurd, even. But what shooting portraits at 900mm? Manny Ortiz teamed up with Irene Rudnyk and Gerald Undone to find out. They used a Sony FE 600mm f/4 GM OSS lens for shooting portraits, and to make things even more absurd, they paired with an APS-C Sony a6400. In other words, they shot portraits at around 900mm equivalent and it looks like they had a lot of fun doing this crazy experiment.