Zeiss Zoom rentals
$300 per day, EF or PL mount
Designed for motion picture use with long focus throws and proper gearing, these lenses are very sharp throughout their focal lengths, even when wide open.
Compared to the Canon 24-70mm and 70-200 f2.8 ISII (T3.4 so 1/2 stop slower) DSLR intended zooms, these Zeiss zoom out-resolve the Canon, are parfocal (holds focus while zooming ) and have no breathing ( the distracting change in focal length when changing focus).