Lightly compressed (= high dynamic range, low amount of compression artefacts -> possible to still do postproduction) video takes a lot of space. 1080p is easil

Lightly compressed (= high dynamic range, low amount of compression artefacts -> possible to still do postproduction) video takes a lot of space. 1080p is easily at least 50 Mbps (6MB/s+). Same for 4k video is probably at least 100 Mbps (but I'd guess less than 200 Mbps). 1 TB is nothing for video like that.