7680 × 4320 pixels — four times 4K density. Mastering standard for theatrical DCP and archival; raw bandwidth and storage remain the bottleneck.
7680 × 4320 pixels — that's four times the data volume of 4K and presents you with a completely different problem on set than just resolution. You're working with image information that pushes even modern workflows to their limits. You'll notice this immediately in editing: real-time playback only works with proper hardware, proxy editing becomes mandatory, and your stacks of hard drives grow exponentially.
In practice, 8K is primarily used for future archiving or when security buffers are needed for large cinema screens. High-end documentaries, elaborate blockbuster VFX shots — this is where 8K is shot, but often not in full length. Typical workflow: you shoot in 8K, edit in 4K proxy, and then color grade to 4K masters. The actual 8K timeline is more of a reserve for cinema DCPs on giant screens or for down-sampling to 4K with maximum quality.
The biggest hurdle remains the data volume. One hour of 8K RAW (depending on codec and bit depth) easily consumes 5–15 terabytes. Add to that codec limitations: not every camera that promises 8K truly delivers usable material without compression. Red Komodo, Sony FX30, some Blackmagic models — the options are limited, and no one shoots casually in 8K the way they shoot 4K.
On set, you need a different infrastructure than usual. SSD recorders, fast storage networks, backup strategies that aren't improvised. The grading suite will get warm, CPU load in editing explodes. That's why people usually work hierarchically: 8K acquisition for high-stakes scenes, the rest in 4K or 6K. This isn't about convenience, but resource management.
Technologically interesting for the future, but currently still a specialized tool. If you need it, you'll know — because otherwise, the budget and hardware requirements wouldn't be justifiable.