Assistant photographer Erik Hinnerdal capturing sound with the Sennheiser SPM 8000 during the #SonDoong360 expedition, just at the entrance of Hang Son Doong - the world's largest cave. Getting a large sound library to mix for inclusion in the final reportage was vital to the expedition's success.

Assistant photographer Erik Hinnerdal capturing sound with the Sennheiser SPM 8000 during the #SonDoong360 expedition, just at the entrance of Hang Son Doong – the world’s largest cave. Getting a large sound library to mix for inclusion in the final reportage was vital to the expedition’s success.