The fx extension unlocks power, mounting and balance for your mirrorless camera.
Enjoy the FilmCube on set or return it for a full refund if you don't love it.
Covered by a one year limited warranty so you can shoot with confidence.
Mirrorless cameras are compact but lack mounting points and space to place necessary attachments. FilmCube solves that problem.
Everyone builds their rig differently. FilmCube gives you the flexibility to set things up the way you need.
To get perfect shots you need balance. FilmCube counter balances the front heavy nature of mirrorless cameras.
FilmCube reduces fatigue and boosts shot steadiness for a more comfortable filming experience.
FX EXTENSION is designed for the Sony FX3 and Sony FX30. It mounts directly to these bodies to create a cohesive rear core for your rig—built around real-world setups like monitor + wireless video or timecode—while keeping the camera’s workflow intact.
Yes — FX EXTENSION is fully compatible with the Sony XLR top handle. You can keep the handle installed while using the system. The design maintains clear access to ports and controls, so your audio workflow and ergonomics stay untouched.
Everything you need to rig and power your FX EXTENSION.
Plus the essential mounting tools and accessories to get shooting fast.
3D printed – FX Extension UniBody
– Top/Bottom Cheese Plate
– Vmount Plate
– Dtap Splitter
– 2x – USB-C Ports
– Power switch
– 2x USB C ports
– Cold shoe
– Nato Rail
– Bottom cover for rod mount
– Allen/hex key
– Coin Shaped Flathead Screwdriver
Accessories:
– 15mm rod clamp
– Extra Allen/hex Key
– XLR Handle adapter (with Bubble level)
– Manual/Paperwork/Stickers
Orders ship within 2–5 days after purchase. Once shipped, delivery time depends on the carrier and typically takes an additional 2–5 days.
We’ll email you an update as your batch moves into production and again when it ships.
Yes! We have a 30 day return policy so you can see if the FX Extension perfectly fits your workflow. There is NO restock fee.
FX EXTENSION is handmade in the USA. Each unit is quality-tested before shipping and may show slight variation in finish or appearance—because it’s not mass-produced.
The core structure is 3D printed using carbon fiber–reinforced material for strength and a premium finish.
