Ikan ES-T17 Sony Alpha Series Handheld Camera Cage Rig for The a7R/a7RII/a7S & a7SII (Black) Fits all of the a7 series full frame mirror less digital cameras Fully enclosed unibody camera rig made out of a single piece of CNC machined aluminum 15 mm light weight support baseplate with an integrated lens adapter support Lens support is compatible with EF to E-Mount and PL to E-Mount Metabones adapters Compatible with Sony's XLR-K1M and XLR-K2M audio adapter