Polaroid’s latest camera makes creative techniques easier while leaving the pleasure of experimentation in your hands. When I was a kid, a Polaroid camera was a delight at parties. Someone took a picture, and there it was… developing before our eyes. Compared with waiting two weeks for a roll of film to come back from the lab as prints, that was magic. Professional photographers I worked with years later had a more practical use: testing lighting before committing to their film shots. Then...