HM-ANT Fittest Quick Release L Plate Vertical Bracket For Sony A99 Alpha A99 Arca Compatible CNC Machined,Black Anodized, Machined from solid aircraft-grade aluminum Delicated bracket for Sony A99 Body Arca-Style Dovetail on Both Segments,is compatible with RRS level-release clamp Allow full access for battery hatch cover and all cable interface,Fast Portrait& Landscape Switching