From the late 1940s MPP produced a very good series of technical cameras starting with the Mk I in 1948 and ending with the Mk VIII introduced in 1963. The model shown here is a late version of the Mk VI; it is fitted with a thumb-screw to attach the rangefinder cam which is part of the Mk VII specification.

The camera is fitted with a full range of movements. It could be focused by the coupled rangefinder, focusing scale or ground glass. Two scales are fitted to this example for 90 and 150 mm lenses. There is an infinity stop which corresponds to a 135 mm lens. As the camera is focused a follower attached to the rangefinder optical movement runs along a cam. The cam, not present on this example, is shaped for each individual lens (not simply a particular focal length). The camera was available with or without the coupled rangefinder, when purchased with a lens, the correct cam plate and focusing scales would have been supplied. There was no flash connection on this model, the view-finder was fixed which prevented an optical finder being used and the spring back was also fixed meaning roll-holders and alternative film sizes could not be used. These drawbacks were rectified in later models. A version fitted with a focal-plane was available.