But Fr. Lombardi, 70, will continue fulfilling his other duties as director of the Vatican's press office and head of Vatican Radio.
Vatican TV records all of the Pope's images, not just those that go public, but also private meetings with ambassadors and heads of state.
"It's a job that entails documenting all images on the one hand, but also choosing those that will be the fountain for studying the history of the Church," Msgr. Viganò said, adding that his new post will be a full-time job.
He gave the example of how videos taken during Vatican Council II allow people to have a better understanding of it.
"I think the Pope's images are a way of sharing the words of his teachings, proclaiming the Gospel, and (sharing his teaching with) local churches,"
"We want to find all ways through digital media so that these images can best reach those who need them the most," he added.
According to the Brazilian priest, it is very important to spread these messages in a pastoral way.
He also believes that the Vatican's radio, TV and newspaper outlets should integrate and improve the way they share information.
"We all work with passion for the Church and to spread the Gospel, but converging is better than competing," said Msgr. Viganò, who is also a member of the Pontifical Theological Academy.
He said that young people today cannot imagine life without internet and that ''territory'' today takes on a whole new meaning.
"There's no difference now between being online and offline, or even a contrast," he said after highlighting the importance of theology in communication.
"There must be competence with modern technology and the fact that Pope has started using Twitter is important," said Msgr. Viganò.
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He noted that we're called to use technology, but in a Christian way.
"This can only be born, not out of will, not out of thinking, but out of the new life in the Spirit," he said.
"Only like this will one be a communication professional as a Christian that knows how to testify to the Gospel," Msgr. Viganò remarked.
"The Church's relevance will be born when we learn again the language of giving testimony," he added.