If you’re wondering which memory cards to buy here’s a buyer’s guide from Matt Johnson showing you exactly what to buy for filmmaking for Sony a7 IV users. If you want to film in 4K in the XAVC S or HS formats and up to 60 frames per second, you can buy the very affordable SanDisk V30 SD cards with a 128GB version.
If you want to edit in the highest possible quality, which is 4K in the XAVC S-I format. In that case, you’re going to need to upgrade to V90 SD cards to do so. For that, you can get the SanDisk Extreme PRO UHS-II V90 SD cards or the ProGrade Digital UHS-II SD Cards.
Via: Matt Johnson