Sony Didn’t Intentionally Brick Third Party Lenses on the a7 V, Viltrox Confirms
Viltrox, one of the most popular third-party lens manufacturers for Sony E and Nikon Z-mount cameras, says it is working on a firmware update that will stabilize performance of its lenses on the new Sony a7 V. Additionally, despite rumors and speculation swirling online, the lens company doesn't believe Sony made any changes to intentionally degrade the performance of third party lenses on E-mount.