"Camera trickery" refers to a technique used in photography or filmmaking where the camera is manipulated to create special effects or illusions that may not be real. Full definition
When it comes to executing the movie's jump scares, Robitel and his collaborators use a number of the same filmmaking tricks that Wan employed in the original Insidious and even rehash some of that movie's infamous bits of camera trickery, to diminished effect here. (screenrant.com)
I am totally clueless about camera trickery. (queenketo.com)
When I first heard that Hilgeland was going to use camera trickery and movie magic to have Tom Hardy play both of the Krays, I was dissuaded, assuming it would be a gimmick to drag more people to the cinema. (oracleoffilm.com)