Sydney man arrested for 'filming young female relatives'.

A Sydney man faces allegations he filmed and photographed two of his young female relatives to create child abuse material.

Police arrested the man, aged 51, in May last year after he was allegedly found in possession of child porn.

Following extensive inquiries, he was again arrested at Dee Why Police Station on Wednesday and charged with several child abuse offences, including use child under 14 for pornographic purposes.

The man was formally refused bail at Manly Local Court and is due to face the Downing Centre Local Court on April 13.