You can download firmware 04 for the Sony E PZ 18-105mm F4 G OSS here This utility updates the SELP18105G lens system software to version 04 to provide improvements to the focus tracking accuracy and stability. Related posts: Sony Lens Firmware Updates? Sony SEL50F18F FW02 Tested and Working Sony Lens and Accessory Firmware Updates Dr. Michael … Continue reading Sony E PZ 18-105mm F4 G OSS Firmware Update