Utilizing mixed gas to explore deep wrecks around the British Isles since the beginning of the 1990s, his 1997 expedition to search for the lost King Edward VII-class battleship off North Scotland became the first of its kind to explore shipwrecks beyond 100 m (330 ft) depths in European waters.
With little material available on the subject of deep 35 mm stills he took to photography specifically for the HMHS Britannic 1998 expedition.
Bishop has worked with government departments in finding shipwrecks: for instance with the UK Customs & Excise Receiver of Wreck, Bishop worked with various diving teams to legally recover artefacts from deep shipwrecks that went on display in various maritime museums.
He has written over 200 full feature articles and his creative underwater imagery has been used in many advertising campaigns for the promotion of diving manufacturers' equipment and popular publications.
In February 2003 he was invited to speak at the International Shipwreck Conference at Plymouth University and later that year made his first appearance as a speaker at the European photographic seminar 'Visions in the Sea' at King's College London.