I choose dark scene background for purpose. And I’m not impressed because I find a lot of vertical lines and artefacts. You can also find moire effect here. Maybe because I’m so used to 2K and 4K resolution no and this is “only” HD.
Hmmm, yes there does seem to be a lot of aliasing. Is this just as visible at other ‘lower’ HiSpeed frame rates (96fps, 75fps) etc?
Tomasz already found out the reason and solution. I’ll ask him to share it here with you soon 🙂
By the way – there is an option to shoot 120fps at 2K in Cinemascope mode in the latest software. A little trick is needed in “Sensor FPS” menu (I’m not sure because I have no access to the camera right now).