A Finnish photographer who goes by the name of Janne recently perfected a technique for shooting a “moon trail,” similar to long exposures you’ve probably seen of stars in the night sky. The photograph required over 37 minutes to shoot as the moon made its way slowly across the landscape. Michael Zhang from PetaPixel explains a bit of the technical details:
Janne was shooting with a Nikon D800 and 100-300mm lens at 300mm, f/8, and ISO 100. The trick behind the shot was a 10-stop neutral density filter, which greatly cut down the amount of light hitting the sensor and allowed Janne to shoot a 2258-second exposure.