Zeiss -- Attenuator is here

The attenuator for the new mercury illumination system arrived last week and is in place. It allows for a very fine level of control over the light level, although it doesn't dial down in 1% increments like the Atto Arc. It sits in the Aperture slot right behind the red suppression filter in the Zeiss fluorescent light path. It's reasonably straightforward and easy to figure out.