Rolling regular 8 stock through both 8 and 16mm cameras, then left unsplit. Old school Kodachrome, download, whatever. These films might start as 16mm, but sources can be digital or analog.
The Pull 
5 minutes, digital, October 2018
Music by Lucio Menegon
‘til I see my way back home 
4½ minutes, 16mm on digital, September 2013
Music by Lucio Menegon
A Certain Slant of Light 
Three minutes, 16mm on digital, September 2011
Music by Bob Ostertag
Between Two Worlds 
3 minutes, digital, October 2011
Music by Lucio Menegon
Fukushima Nightride 
3½ minutes, film on digital, April 2011
Music by Lucio Menegon
Martyr 
4 minutes, digital, July 2009
Music by Mark Growden
Windy 
1 minute, digital, July 1993