ZOOM LAPSE – John Du Cane, 1975 (UK)
ACCRETION– John Du Cane, 1977 (I think – also UK)
WAVELENGTH by Michael Snow
SERENE VELOCITY by Ernie Gehr
BREAKAWAY by Bruce Conner
Of course, WAVELENGTH rules this list. Remember, almost all of Kubrick's films use zoom lens techniques and also the car chase scene in "Bullet."
Good luck,