It was third time lucky for Wellingtonian Mr Poste when it came to realising his dream of creating a timelapse of glow worms in Waipu Caves.
His first attempt ended in battery failure and light contamination by a red camera LED. The next time, the cave was busy with tourists and water seeped into his lens.
Finally, during a 40-hour effort in May this year, Mr Poste succeeded, sleeping at 30-minute intervals on an air mattress and waking to check the camera as it moved millimetre by millimetre.
Each frame is an exposure of 30 seconds or more, so every 10 seconds of video took him more than two hours to shoot.
Originally from Canada, Mr Poste and his partner - who is from Nova Scotia and wanted to go to the Caledonian Highland Games - visited Waipu last Christmas.