Can college students majoring in broadcasting take the postgraduate exam in photography?

Theoretically, you can take an examination of any professional graduate student, as long as your grades are out of line and you pass the re-examination! But many schools don't like non-major students to study for a master's degree!

Yes, if there are clear requirements, it is definitely not possible, but if some schools can't recruit students of this major all the year round, you can try to contact the Graduate Admissions Office before, or contact the tutor directly! There is hope if you agree, and there is more hope if you find a tutor!