O campo de camuflagem parece se estender ao redor da extensão normal do navio. Quando os objetos se projetam desta silhueta, eles se tornam visíveis. Isso é explicitamente confirmado na novelização do filme:
For a minute Javy considered jumping out of the truck, but Ben had it going nearly fifty. Javy tried to see behind them in the side mirror, but the light and the ramp had vanished, and he could make out only shadows.
Jim led the way out of the Bounty and signaled for the ramp to withdraw. It disappeared into the cloaking field. The hatch closed, cutting off the interior light. Star Trek IV : Novelisation
Vemos outro exemplo disso quando Scotty fura a metade superior de seu corpo fora do campo quando está manipulando as paredes de acrílico:
Gillian gasped. The man hung unsupported in the air. But from the waist down, he did not even exist. It was as if he were standing within a structure that could not be seen and that could conceal him as well. An invisible structure ... "
