Yes, the Canon EOS R50 is compatible with the Sony SF-G Tough 128GB.
Sony SF-G Tough writes at 299 MB/s. Canon R50 4K30 requires 60 MB/s minimum. More than sufficient.
“Canon EOS R50 Compatible Cards: SD/SDHC/SDXC memory cards — UHS-I cards supported; UHS-II cards operate in backward-compatible UHS-I mode per Canon online manual.”
Last verified:
Confidence: inferred