Photographer Nathan Myhrvold has captured the most detailed images of snowflakes thanks to a custom-built high-resolution cooled camera he made to specifically deal with the numerous challenges of photographing the delicate ice crystals.
As you can probably imagine, there are numerous challenges to overcome if you want to photograph snowflakes. Those challenges were what led Myhrvold to try and do it, as he felt compelled to tackle the subject matter. Only a few millimeters across, snow crystals present a challenge due to their size and fragility.
The images captured were shot on location in Fairbanks, Alaska, and Yellowknife, Northwest Territories, Canada. Some of the best snowflakes Myhrvold found were at temperatures between –15 and –20 degrees Fahrenheit (–26 to –29 Celcius).
Snowflakes both melt and sublimate, causing the sharp features of the crystal structure to degrade over a short period of time. When building his method, Myhrvold had to carefully consider time, temperature, weather conditions, and equipment.
According to his representation Modernist Cuisine, Myhrvold spent about 18 months designing and building a custom snowflake camera so that he could photograph snow crystals with this degree of detail and clarity. Calling it “the highest-resolution snowflake camera in the world,” it uses a Phase One sensor (100MP) adapted to a microscope objective. Myhrvold developed an optical path to fill a medium-format digital back, allowing him to obtain a larger, sharper image than most microscopic photographs.
To deal with the problem of melting, the microscope had a cooling stage that kept the snowflakes from vaporizing too quickly, giving Myhrvold more time to capture and focus-stack images.
The camera was paired with short-pulse, high-speed LED lights, typically used for industrial purposes, to reduce the heat they put out and increase the speed he was able to capture images. With this innovation, the camera has a minimum shutter speed of 500 microseconds.
You can see more of Myhrvold’s work at his Modernist Cuisine gallery.
(via DP Review)
Image credits: Nathan Myhrvold of Modernist Cuisine Gallery and shared with permission.