Canon Cine-Style HD Zoom Set

Canon Cine Style, HD, B4 Mount
T2.1, Macro, Focus (imperial) feet scale
Film pitch 0.8 (iris, zoom, focus barrels)
Illuminated markings .... One of the surprising features of Canon's HD-EC zoom lenses is the very small amount of focus breathing
making the lenses ideal fror HD-EC production
The 21X has up to 3 times less focus breathing than any other comparable lens
and the 11X has an additional 50% less focus breathing