New Kodak Ektar35 is a half frame camera which doubles your exposures. When getting standard prints, it's a diptych - 2 frames. Some photographers choose to shoot in pairs to tell a story. Others like to shoot random & see what pairs come up. Originally the 35mm half-frame cameras were targeted as a budget film camera double the amount of photos taken on a roll.
From Kodak's webpage:
Ideal for a film beginner or anyone looking to reduce film costs, the half frame film camera will allow you to double up on your 35 mm film and yield double the photos. This camera features a built-in flash, a lightweight body, and comes in four nature-inspired colors, making it the perfect camera for travel or any social occasion.