In Revolt into Style (1970), George Melly wrote that in the Sixties Pop was a sort of synonymus with Camp.
Nowadays to avoid the confusion is much more easier.
Although Camp supported the achievement of Pop Art, Camp has been contaminated by many other styles; at the same time Pop helped Camp style to become more lively and popular, but Camp is older than pop of 300 years at least.
POP vs CAMP
Popular (for the folk) vs easily accessible
Escape (just for short time) vs definitively easy
Dispensable vs cheap
Cheap vs artificially magnificent
Young vs in worship of youth
Sexy vs artificially sexy
New vs made of quotations
Glamourous vs artificially glamorous