In addition to the Sony PMW-EX1 camera, Tom has added the Letus Ultimate depth of field adapter, a model up from the popular Letus Extreme.
In the following clip, in addition to a pretty good remix of The Killers, we get to see these two pieces of equipment working in conjunction (though the Letus Extreme was used for a few of the shots) and some experimentation with overcrank and undercrank.
Ultimate Boston - Letus Ultimate 35mm Film from Tom Guilmette on Vimeo.