Battery Life While Using the Bulb Setting

     Alright, so I've been using the bulb setting for an assignment for a separate class and I've found that the battery life quickly dwindles down a unicyclist in a stairs factory and I was wondering what kept leeching the power. I'm guessing it's the light meter though it uses a very minimal amount of energy but, hum, it is a guess so be sure to give me the heads-up if I'm wrong.

And as always, here is my photo of the week:

0_o