Ensign Selfix 16-20 Model IV

This lovely camera, launched in 1953, shoots sixteen 6x4.5 frames on either 120 or 620 film. The triplet lens is a very sharp 75mm Rosstar f/4.5 lens and the shutter is an eight-speed Epsilon shutter with a top speed of 1/300. It also has Bulb and Time modes. The camera is oriented to take vertical shots, so needs to be turned on its side to take landscapes. The pull out tab on the door front makes this easier, particularly with slower shutter speeds. The lens is capable of focusing down to 4.5 feet, and there are no focusing aids so you either need to guesstimate or use a rangefinder. The lens mount has sockets for a cable release and for a synchroflash plug. At the time of launch it cost £16 8s.

As a measure to help people get to grips with the camera in the shortest space of time, Ensign included a "simplified distance and exposure setting" on the camera, so in theory you could use these settings without thinking too hard and get nice pictures in the majority of cases. This "Two-point focusing system" works thus:

"Lens aperture: Set the aperture cursor at the red spot situated on the scale plate between f/11 and f/16.
Focus setting: The lens mount is rotated until the red spot is in line with the focus setting indicator.
The above setting will be sufficient for the great majority of subjects under reasonable conditions of lighting when using the popular medium speed films, and all subjects from infinity to approximately 12 feet will be rendered reasonably sharp. Objects nearer than 12 feet should not be incorporated when using the two-point system.
The shutter speed must be decided entirely by prevailing lighting conditions and the sensitized material in use, as indicated by the exposure table..."

Here is the exposure table (for the model II which had an f/3.5 lens):

They also provided a focal depth table (this one is for model II but all except the f/3.5 column apply to model IV):

They also include a handy table of Ensign branded Postar Lenses, which were close-up lenses you could attach to the camera to allow closer focus:

Like the Ensign Commando, the Selfix 16-20 requires 32mm filters.