SanDisk 64GB & 128GB Extreme PRO UHS-I SDXC Memory Card WARNING: Sony a7 III, a7R III & a9
[UPDATE: 12.18.18 Sony Firmware Update 2.10 for a7 III & a7R III and Firmware Update 4.10 for a9 provide a fix for this issue.] Several readers alerted me to incompatibility problems with SanDisk 64GB Extreme PRO UHS-I SDXC & SanDisk 128GB Extreme PRO UHS-I SDXC memory cards in Sony a7 III, a7R III & a9 …