The most reliable sources for FX6 files include official manufacturer repositories and specialized cinematography gear sites. Sony Cine Test Footage Page
Sony Cine Test Footage: Sony provides a dedicated Test Footage Page where you can download clips shot under various conditions and codecs to test your workflow. Note that you may need to fill out a short form to gain access. sony fx6 test footage download
Believe it or not, some cinematography students upload unlisted FX6 footage to The Internet Archive for collaboration projects. Search for "Sony FX6 raw dailies." The most reliable sources for FX6 files include
Important:
Low Light Performance: See how the dual base ISO handles shadows. XAVC-I and XAVC-L (MXF or MP4 wrappers) ProRes
If you can handle the codec, love the dual ISO, and the Venice color science speaks to your soul—buy the FX6. If the test footage frustrates you, look at the Sony a7S III (same sensor, hybrid form factor) or the Canon C70.