How are you securing USB-C tether cables so they don’t pop loose during movement-heavy shoots? My TetherPro C-to-C on a Sony A7 IV still drops every 10–15 frames even with a JerkStopper and gaffer tape, and I’m tired of restarting Capture One mid-session.
a JerkStopper and gaffer tape, and I’m tired of restarting Capture I fixed this on my A7 IV by using a right‑angle USB‑C locked in a SmallRig cage clamp and a 0.5 m pigtail to a tripod‑mounted hub so the long cable never tugs the port — want the clamp model I used?
My take: I’d lean toward the simplest next step and see if it changes anything this week — if not, you’ve got a clear case to escalate. What would block you from trying that?
, my A7 IV did the same — “drops every 10–15 frames” — until I ditched the TetherPro for a short Thunderbolt 4 cable (OWC/CalDigit about 0.7–0.8 m) as the camera lead and set USB LUN Setting to Single; rock-solid since. TB4 is a bit stiffer, so give it a soft loop for strain relief. Are you going through a hub or straight into the laptop?
On my A7 IV, the only thing that stopped the “drops every 10–15 frames” was setting USB LUN Setting to Single (Setup > USB); after that Capture One ran for hours without a hiccup. Small caveat: you’ll need to switch it back if you use MTP to pull files after the shoot. What are your USB Connection/PC Remote settings right now, @OP?
I solved it by adding a TetherBoost Pro USB‑C inline between camera and computer (the little “core controller” box); it kept power/signal steady and my A7 IV hasn’t hiccuped since: TetherBoost Pro USB-C Core Controller Extension Cable | Tether Tools. If you still get nudges, a super‑soft silicone cable (Anker 643) reduces plug torque — like swapping a crowbar for a noodle. Is your Sony’s USB Power Supply set to Off?