Exposure adds several advancement triggers and predicates that are used in built in advancements, but anyone can use them as well.
Triggers:
exposure:frame_exposed
exposure:frame_printed
Predicates:
CameraPredicate
ShutterSpeedPredicate
FramePredicate
EntityInFramePredicate
ExtraDataPredicate
You can see example usage of triggers and predicates in Exposure's advancements