Sony A7s Guide

Finding the best cage for the Sony A7s

Here are my suggestions for cages for the A7s, and which one I chose:

After considering all the cage options in the market, I can’t find any that are better than the Movcam cage. Not only does it look good, but it does everything you need it to, including having an HDMI lock and an EVF mount. Really stellar piece of engineering and manufacturing.

At first, it took me about 10 minutes to screw everything on. It’s much easier if the camera is on a secure tripod or table. Now, it takes me about 2 minutes to dismantle or rig up. The top handle comes out with two screws, so it takes about a minute. Same applies to the side plate, which needs three screws.

You can buy it here:


These are important topics raised by subscribers that shed more light on this lesson.

Q. What about the Varavon cage?

A. A user has this to say about the Varavon:

really works well: good fit, accessible everything, good engineering and materials … love the leather handle and the cable locks.

Q. What about the Motion9 cage?

A. Here are reasons why I didn’t recommend this over the Movcam:

    • It is only slightly cheaper than the Movcam (on Ebay, that is).
    • It has no riser for the right height
    • The HDMI lock really isn’t a lock, just a hole (at least from the pictures)
    • It doesn’t have an EVF mount
  • The grip side isn’t detachable, in case your hands can’t get to the controls for handheld shooting

Q. What about the LookCircle Birdcage?

A. I am not personally acquainted with it, though I don’t like the open-ended cage design. Also, there are no hot/cold shoe mounting points.

However, because it interfaces with the PL mount, I believe it is good enough and mandatory for high-end work, even on jibs or gimballs. The A7s mount is not reliable for heavy lenses or clip-on matteboxes, so the extra support is welcome. Plus, it is made by P+S, no complaints!

If you want to use heavy PL glass, then go for it, otherwise it’s too expensive.

Do you need the LockPort? No, I don’t think so. See my answer here.