Photographer Mikael Buck captured some amazing photos inside a cave in the Vatnajökull glacier in Iceland.
Buck took the photos for Sony to demonstrate their new sensor that allows photographers to shoot in low light without a tripod, and without using tricks like stitching several exposures together. "I was able to shoot the images hand-held and without any HDR," photographer Mikael Buck told BuzzFeed over email.
"Getting to some of the caves involves a two hour hike each way over the Vatnajökull glacier (with crampons) and once you arrive time is short," said Buck.
"Being so far north the daylight hours are very limited this time of year, so not being tied to a tripod was a massive help."
"The ice caves themselves were absolutely mind blowing," said Buck. "It really felt like being in alien landscape."
"The colours and the textures created by the ice and volcanic ash are a photographer's dream."
"The guides I went with have been guiding in the area of generations and had a huge amount of experience and it was fascinating to have the movements of the glacier explained to me by them."
"Every year, the shape of the caves change in summer as the ice melts and parts of the glacier move, then as winter begins Einar (the lead guide) goes out exploring the glacier, doing the dangerous work of checking if old caves are still safe and if any new ones have opened up over the summer."