In the video scene test DPReveiew, clearly the Canon is a teeny bit more detailed than the Sony. It's a real shame there is no ZCam F8 to look at.
It's very clear that the A1 is capable of downsampleling from 8K to 4K or FHD but Sony artificially crippled this very useful feature for internal recording. :)
Atomos is developing ProRes RAW support for Sony’s new Alpha 1. The Ninja V will eventually be able to ProRes RAW from the Alpha 1 RAW output at up to 4.3K 60p.
New firmware
https://www.sony.com/electronics/support/e-mount-body-ilce-1-series/ilce-1/software/00260268
More samples
https://www.dpreview.com/sample-galleries/5226835446/sony-a1-alpha-one-sample-gallery/7039887960
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