Heavy duty camera cage for DSLRs and other cameras. Arca style frame all around This cage doesn't obscure access to the USB and HDMI ports of Canon cameras. Also included is a monitor adapter for 7-8 inch monitors with VESA mount (thing:2478879).. Remove the thin extensions that help with printing. Make sure that no supports are placed in the threads. Handles are fixed in place with 3/8-16 and 1/4-20 screws.