The Genesis Cam Cage Kit A7 is designed specifically for the Sony A7, A7s, A7r,  to allow fast and convenient mounting of accessories necessary for filming. Included are: cage with handle, HDMI mini adapter – micro HDMI, quick assembly plate, two hot shoes (on the handle), threaded holes (1/4 “and 3/8”) and a set of 15mm rods.

The cage allows you to mount Sony A7II / A7sII / A7rII but not fully compatible with them (ie. access to the camera wheel is difficult).