As regras escritas são silenciosas, portanto, cabe ao Mestre de Jogo.
Objetivo
The active character takes extra time to make a more precise attack. Aiming as a Half Action grants a +10 bonus to the character’s Weapon Skill or Ballistic Skill test for his next attack, while aiming as a Full Action grants a +20 bonus to the character’s next attack. The next action the Aiming character performs must be an attack (Standard Attack, Semi-Auto Burst, Lightning Attack, and so on) or the benefits of Aiming are lost. Aiming benefits are also lost if the character performs a Reaction before making his attack. Aiming can be used with both melee and ranged attacks, but not with attacks made with psychic powers.
Isso pode ser interpretado como "se você fizer qualquer coisa que cause uma interrupção ou faça você parar de mirar, você perde seu bônus de mira".
Ação gratuita
Free Actions take only a moment to complete and usually require no real effort. A character can perform Free Actions in addition to any other actions on his turn.
Na maioria dos casos, você deve ser capaz de realizar uma ação livre antes de fotografar e manter o bônus, no entanto, pode haver situações em que não será permitido.