Viltrox also issued a warning not to update your Nikon cameras’ firmware with third-party lenses attached: For Nikon Camera Users Updating Firmware We’ve recently become aware of a new notice issued by Nikon, advising users not to update their Nikon camera firmware while a third-party lens is attached, as this may cause potential issues or malfunctions. As … Continue reading Viltrox also warns: don’t update Nikon cameras’ firmware with third-party lenses attached