|image by Steve Harwood (Image rights)|
The EK4 is a very early model in the Kodak Instant line of cameras released in 1976. It's features were very basic. It lack an electronic motor for film ejection and requires a hand crank. The nearly identical model EK6 was also available but had motorized ejection. Flip flash socket is on top of the camera. The lens has markings surrounding the lens in both meter and feet. Exposure and focus control is with sliders on the face of the camera. Sliding the focus control rotates the lens indicator to the corresponding distance markers. It used PR10 (PR144) film. It is powered by a 6V flat J sized battery.