Sony FX 6 Quick Start Manual page 15

Recording Media: XAVC L Recording time per card
Only use XAVC L if you require a longer recording time.
The 10 bit HD 50 Mbps image quality is very good.
The 8 bit 4K image will be noisier in low light.
XAVC L recording times per card:
XAVC L HD (35 Mbps):
XAVC L HD (50 Mbps):
XAVC L 4K (150 Mbps):
XAVC L file sizes are much smaller than XAVC I.
500 min. (approx.)
340 min. (approx.)
200 min. (approx.)