When New Zealand-based photographer John Bozinov set off on an adventure to capture the beauty of Antarctica, the parameters of his task were clear, everything must be shot on an iPhone.
During the past year Bozinov has been working on a polar expedition vessel as a photographer, giving him access to some of the world's most remote places.
"I've always enjoyed travelling and shooting with my iPhone so when I learned that I would be heading down to Antarctica at the end of 2016 I knew it would be a great opportunity to capture the Antarctic landscape in a unique way," he told Daily Mail Australia.
Working on a polar charter as a photographer allowed him to experience the world from a new perspective and capture the journey in images along the way.
When he decided to only use his smartphone, the Wellington man kept the guidelines simple: "I wanted everything to be shot on the iPhone 7 plus using the native camera app, and everything had to be edited in its entirety on the iPhone, too."
Bozinov said throughout many spectacular moments on his trip to the cold temperatures of the South Pole one highlight stands at the forefront of his mind: a whale encounter.
"I remember one morning we were out photographing humpback whales, feeding in a well-sheltered cove called Wilhelmina Bay when, what seemed like out of nowhere, our zodiac was surrounded by a pod of five or six humpbacks, all swimming within only a couple of metres from us," he said.
"It was an incredible few minutes, an experience I'll never forget."
Although the experience was an opportunity that most people may only be offered once in a lifetime and exploring the more remote parts of the coldest continent, the photographer faced challenges amidst the sub-freezing temperatures, which can affect the operation of cameras.
"To overcome this I simply made sure that if I wasn't taking a photo, the iPhone would be kept in an internal pocket close to my body protected from the outside air. This was adequate to keep my phone warm enough to be functional for the duration of the day," he said.
Bozinov said the trick is trying to get close enough to wildlife to get decent photos with a wide-angle lens.
"Fortunately, most of the animals we see in Antarctica [seals and penguins] didn't evolve around a natural land predator, which means that even though they can be timid, they're not overly fearful around people," he said.
"As long as I kept my movements slow I was able to get close enough for the photos I needed."