Overheating is one of the most documented issues with the Sony A7IV, A7C II, A7C R, and ZV-E1. During extended video recording, these cameras automatically shut down to protect the sensor. On set, this means a lost take. At a live event, it's a disaster.
Solutions exist. The most effective: an active fan. And that's precisely what we designed the Rig'it modules for these four cameras around.
Why do these cameras overheat?
The Sony ZV-E1, A7IV, A7C II, and A7C R share the same logic: high-performance full-frame sensors in ultra-compact bodies. Miniaturization leaves little room for passive heat dissipation. In 4K 60fps or continuous recording, heat quickly builds up.
Sony has improved thermal management from generation to generation, but the problem is not structurally resolved. The only true solution remains active cooling.
The Ulanzi fan: the go-to for Sony videographers
The Ulanzi camera fan has become the go-to solution for Sony videographers in just a few years. Compact, quiet, and efficient, it significantly lowers sensor temperature during continuous shooting.
Its only problem: on an assembled rig, it often clashes with accessories. Cage, follow focus, monitor arms, D-Tap cables... The fan ends up not fitting, or forces you to give up other elements of the rig.
What we did differently with Rig'it
When we designed the Rig'it modules for the Sony A7IV, A7C II, A7C R, and ZV-E1, we mapped out the accessories that videographers actually use with these cameras. The Ulanzi fan was on that list.
We integrated a dedicated space in the module's design so the fan can be installed without compromise. Even better: it plugs directly into one of the Rig'it's 65W USB-C ports via a angled USB-C cable — available in our store — for clean power without an additional external battery. No conflict with D-Tap outputs, no messy cables. The rig remains compact, and the fan runs continuously.
That's what workflow thinking is all about: anticipating real shooting problems before they happen.
What it specifically changes on a shoot
- Continuous recording without thermal cut-offs, even in long 4K shoots
- Fan powered directly by the Rig'it, no dedicated battery
- Angled USB-C cable for clean and discreet routing in the rig
- Complete rig without having to choose between the fan and other accessories
- Peace of mind: the camera is running, you can focus on the image
Compatible with Rig'it modules
The Ulanzi fan slot is integrated into the following modules:
- Rig'it Sony A7SIII / A7IV / A7V / A7RV — V-Mount power, 4x D-Tap, 2x USB-C PD
- Rig'it Sony A7C II / A7C R — V-Mount power, 4x D-Tap, 2x USB-C PD
- Rig'it Sony ZV-E1 — V-Mount power, 4x D-Tap, 2x USB-C PD
Made in France, printed in carbon fiber reinforced PETG.
Conclusion
Overheating in compact Sony cameras is not inevitable. With a Ulanzi fan powered directly by the Rig'it via an angled USB-C cable, you can shoot longer, more confidently, without making your rig heavier or more complex.
This is the kind of detail you don't see on a product sheet, but you feel it on every shoot.
