 (When viewed from the back of a camera the four tubes were seen as a diagonal cross).This optical arrangement defined the cross-section dimensions of the camera (which was not small – 380 x 380 mm), but it did allow the zoom lens to be located within the camera body.Also the removal of individual pick-up tubes was possible without any need to remove the scanning coils, as the tube bases were easily accessible at the outer corners

Rank Taylor Hobson declined to offer a zoom lens for EMI's new camera, claiming they were fully committed elsewhere, but the Angenieux Company (see Pierre Angenieux) expressed their interest in supplying zoom lenses for the project.