Here are the specifications and manual for the FX6:
The FX6 specs are here:
https://www.sony.co.uk/electronics/professional-video-cameras/ilme-fx6/specifications
And the FX6 manual is here; https://www.sony.com/electronics/support/camcorders-interchangeable-lens-camcorders/ilme-fx6v/manuals
Is there any info on the exact sensor size (in millimeters)?