🚨 MAJOR UPDATE (Dec 6, 2025): Hands-On Tests Confirm Full Compatibility – No Issues with Viltrox Lenses on Commercial Sony α7 V Units. Early concerns from pre-production testing have been resolved in retail bodies. See details below for our photographer-verified results.
A recent video posted by Kai has sparked early concerns related to Chinese-made E-mount lenses from brands like Viltrox and Yongnuo. While he was doing the review with a pre-production unit, the Chinese-branded Viltrox and Yongnuo lenses showed incompatibility with the Sony A7 V camera. When used on the A7 V body, the entire camera became useless and froze after using the third-party lenses from the Chinese lensmakers, but it seems that the problem was limited to pre-production units of the camera.
We were invited to spend a few hours with the recently announced Sony A7 V camera bodies, and along with that, we tried and tested Viltrox lenses. What it seems is that commercial bodies aren’t showing any issues with the lenses that we tried with the bodies, so we can confirm that the commercial units or the production-line units are not showing any existing issues while performing autofocus operations with Viltrox lenses.
What About Other Chinese Lenses?: At the time we were testing out the camera, our access to lenses was limited to Sony G Master lenses, Sigma, Tamron, and Viltrox. So, we are not able to comment on the compatibility with other Chinese lenses at this very moment.
However, we are keeping our focus on this issue. If we receive any further updates, we will post an update here soon.
VERIFICATION UPDATE: We have confirmed that Sony α7 V commercial units demonstrate full compatibility with Viltrox lenses, with no reported issues. Our photographers conducted tests using two distinct camera bodies, paired with the Viltrox 85mm f/2.8 and Viltrox AF 28mm f/4.5 lenses, and observed seamless performance across all units—including full autofocus response, aperture control, and no freezing during bursts or video. These tests were performed on retail-ready bodies, suggesting the issues were isolated to early prototypes.
A recent video posted by Kai has sparked a new controversy related to Chinese-made E-mount lenses from brands like Viltrox and Yongnuo. When using lenses from these Chinese brands, the Sony A7 V camera completely stopped focusing, rendering the lenses seemingly useless.
Update: 6:06 pm, Saturday, 6 December 2025, Greenwich Mean Time (GMT)
Thenewcamera Team – We have verified that Sony α7 V commercial units demonstrate full compatibility with Viltrox lenses, with no reported issues. Our photographers conducted tests using two distinct camera bodies, paired with the Viltrox 85mm f/2.8 and Viltrox AF 28mm f/4.5 lenses, and observed seamless performance across all units.
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- The article “Sony A7V Compatibility Crisis: Viltrox & Chinese E-Mount Lenses Don’t Work – What Now?” was written on 8:09 pm, Thursday, 4 December 2025, Greenwich Mean Time (GMT)
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