1. An apparatus for imaging a biological sample with fluorescence, the apparatus comprising: an imaging stage having a transparent portion for holding at least a portion of a biological sample within an imaging volume; a first rotary bearing having a first rotational axis configured to project through the imaging volume; a leg extending between the stage and the first rotary bearing, the leg offsetting the stage from the first rotary bearing; a second rotary bearing having a second rotational axis configured to project through the imaging volume, the second rotational axis being orthogonal to the first rotational axis; an armature extending between the first and second rotary bearings; a visible light source configured to illuminate the imaging volume; a fluorescence excitation light source configured to illuminate the imaging volume; and a camera configured to have a depth of focus within the imaging volume.