Traditional Culture Encyclopedia - Photography and portraiture - How to construct double exposure photography? Why isn't what I'm holding obvious?

How to construct double exposure photography? Why isn't what I'm holding obvious?

When you say double exposure, do you generally mean manual film photos or digital photos? I remember the function of multiple exposures. Nikon's digital SLR is mostly related to composition. Generally speaking, it depends on your personal imagination. For example, you can have two selves in the picture, one representing the working state and the other representing the living state, to reflect two sides of a person.