Aluminum alloy and machining video cage, replacement Sony A7M3/ A7R3/ A9 mirrorless . Featuring 14 inch mounting screw and rubber pads on the base plate, the cage will your very well. Multi-mounts design, with 14 inch & 38 inch screw holes, positioning holes and cold shoe mount installing monitor, microphone, , handle, etc. 38mm international standard bottom base design allows you to install the cage to the 38mm QR plate of the tripod head immediately.
