SonyAlphaRumors was the first to notice that Sony has issued a firmware update for many of its FE lenses.
According to the official download page, the improvements vary depending on the lens. For example, in the case of the FE 35mm F1.4 ZA, the “credibility of the focus position is improved when using the camera continuously in MF setting at long period time,” while the 70-200mm receives the “Quick starting” function.
You can find more information about each individual firmware update by clicking on the links below:
