His subject matter includes Masonic lodges, war memorials, houses and the occasional landscape.
However, when he was typecast as a building photographer, Aberhart took a series of human portraits to debunk the stereotype.
[2][3] Aberhart trained to become a primary teacher and it was around that time when he first became interested in photography by reading the photographic books on display and seeing a friend working in the darkroom.
[3] He has been featured in many photographic exhibitions since 1978; his work has been shown in museums across the globe, including Australia, the United States and France.
Owing to this unusual photographic process, each print would take in excess of eight hours to fully develop in Aberhart's darkroom.
[3][4] Aberhart was fairly limited in his subject matter, sticking mainly to Māori carvings, buildings, museology and memorials.