IDC System Zero Standard Follow-Focus for Canon 7D Completely gearless follow-focus is designed for accurate and smooth focus acquisition Accepts multiple LCD loupes including the iDC quick-release adapted Hoodman HoodLoupe 3.0, the Zacuto Z-Finder Pro, LCDVF and other direct-to-LCD mount-style viewfinders The SYSTEM ZERO Camera Plate accepts the Zacuto Z-Finder Pro (not included) when the Z-Finder is equipped with a Zacuto Mounting Frame (not included). The iDC Camera Plate replaces the Zacuto Gorilla Plate in this instance Four dovetail slots on the focusing plate provide focus wheel positioning for a wide variety of lenses from wide to short tele-photo The sliding focusing plate design allows quick micro-adjustments of the focusing plate for lenses that fall in between the four provided slots