I captured some beamshots of the Emisar D1S and several other lights at three locations.
I wanted to compare the D1S and D1 to help others decide which to get, or to convince D1 owners to get a D1S as well. 
I also included the Emisar D4, EagleEye X6R, and Maxtoch Shooter 2X. The D4 is obviously the floodiest of the group, and the Shooter 2X the throwiest. My X6R with a TA driver performs almost exactly like a Kronos X6.
The D1 and D1S both have XP-L HI V2 3A 5000K emitters.
The D4 is an early model with the 219C 5000K ~80 CRI emitters, not the newer 90+ CRI ones.
The X6R has an XP-L HI V3 3B emitter.
The Shooter 2X has a factory-dedomed XM-L2 U4 1A emitter.
Above, from left to right: D1, D1S, Shooter 2X, X6R, D4
In all three locations, each light is mounted at waist height with the camera positioned directly above it.
Location one is a forest trail with the lights aimed straight ahead at the tree trunk in the center.
Location two is an open field with the lights aimed straight ahead at the evergreen tree in the center.
Location three is an open field with the lights aimed upward at the tree’s leaves to accentuate hotspots and reduce spill on the ground.
The trees in each location are 115 feet (35 meters) away.
Emisar D1S vs Emisar D1:
These smaller .GIFs comparing the D1S to other lights are clickable to view larger:
Emisar D1S vs EagleEye X6R:
Emisar D1S vs Maxtoch Shooter 2X:
Emisar D1S vs Emisar D4:
The original photos’ thumbnails are clickable to view larger. Here is a link to the imgur album.
Left to right: D1S, D1, X6R, Shooter 2X, D4
Back when my D1 arrived, I posted some comparison beamshots of the Emisar D1, EagleEye X6R, and Astrolux S3 (Kronos X5) in another thread.
EDIT: Added emitter information near the top. This info was previously only included in the photos.