Depositions are considered in court proceedings though they don't occur in the courtroom. They're taken in private settings before a court reporter.

The scope of discovery isn't simply relevance or admissibility. Rather...

> Unless otherwise limited by order of the court in accordance with this title, any party may obtain discovery regarding any matter, not privileged, that is relevant to the subject matter involved in the pending action or to the determination of any motion made in that action, if the matter either is itself admissible in evidence or appears reasonably calculated to lead to the discovery of admissible evidence. Discovery may relate to the claim or defense of the party seeking discovery or of any other party to the action. Discovery may be obtained of the identity and location of persons having knowledge of any discoverable matter, as well as of the existence, description, nature, custody, condition, and location of any document, electronically stored information, tangible thing, or land or other property.

Nonetheless, a party can refuse to answer questions if there's a proper discovery objection. They can also stop the deposition to seek a protective order. Merely objecting to a line of questioning or presentation of photos without more doesn't do shit. You have to not answer or walk (at risk of monetary sanctions).

Thus, if she thought they were exceeding the scope of discovery or violating her privacy, she should have met and conferred with counsel per statute on the record and subsequently sought a protective order if the matter couldn't be resolved.