@Scot

Thermal shots had been made with continuous recording with one second pauses for restart, total time was 45 minutes, ambient temperature was 25 degrees Celsius.

In other words - things are bad.

Review

https://www.imaging-resource.com/PRODS/fuji-x-h1/fuji-x-h1A.HTM#hands-on

Review

https://www.imaging-resource.com/PRODS/fuji-x-h1/fuji-x-h1VIDEO.HTM

FUJIFILM X-H1 Ver. 2.00 : December 2018

1. In-body image stabilization and optical image stabilization now work together to improve overall stability
   With an XF or XC optical image stabilized lens, in-body image stabilization worked with 3 axis (up and down optical axis rotation). The remaining 2 axis (right and left pitch, yaw angle) was controlled by optical image stabilization in the lens. This firmware has a new image stabilization algorithm to allow the in-body image stabilization to work in all 5 axis and to achieve more than five-stops (up to the equivalent of 5.5 stops ) image stabilization by cooperative control according to the types of frequency and blur amount.
   To activate this function, lenses are necessary to be updated to latest firmware version. Please check the latest firmware version from http://www.fujifilm.com/support/digital_cameras/software/fw_table.html#interchangeable_lens
2. Improved in-body image stabilization performance
   Eliminate image shake when panning slowly when movie recording or on the live view image.
3. Recording over 4GB movie file as one file
   Movie files are no longer split when the file reaches 4GB file size. The file is recorded as one file providing an SD memory card greater than 32GB is used (excludes 32GB) . By using SD memory cards less than or equal to 32GB, movie recording will continue without interruption when the file size reaches 4GB, however subsequent footage will be recorded to a separate file.
4. Display color temperature (Kelvin) on EVF/LCD
   Color temperature (Kelvin) can be displayed on EVF/LCD.
5. Display power supply icon Power supply icon is displayed on EVF/LCD while using AC adapter (AC-9VS), or Anker PowerCore+ 26800 PD *10 and Anker PowerCore Speed 20000 PD. Anker and PowerCore are trademark or registered trademark of Anker Innovations Limited or associated companies. Product may not be available on your country.

V2.0 firmware available now

1. In-body image stabilization and optical image stabilization now work together to improve overall stability With an XF or XC optical image stabilized lens, in-body image stabilization worked with 3 axis (up and down / optical axis rotation). The remaining 2 axis (right and left pitch, yaw angle) was controlled by optical image stabilization in the 　lens. This firmware has a new image stabilization algorithm to allow the in-body image stabilization to work in all 5 axis and to achieve more than five-stops (up to the equivalent of 5.5 stops (*1)) image stabilization by cooperative control 　according to the types of frequency and blur amount. To activate this function, lenses are necessary to be updated to latest firmware version.
2. Improved in-body image stabilization performance
   　Eliminate image shake when panning slowly when movie recording or on the live view image.
3. Recording over 4GB movie file as one file
   　Movie files are no longer split when the file reaches 4GB file size. The file is recorded as one file providing an SD memory card greater than 32GB is used (excludes 32GB) .
   　By using SD memory cards less than or equal to 32GB, movie recording will continue without interruption when the file size reaches 4GB, however subsequent footage will be recorded to a separate file.
   　Note：Format SD memory cards before first use, and be sure to reformat all memory cards after using them in a computer or other device.
4. Display color temperature (Kelvin) on EVF/LCD
   　Color temperature (Kelvin) can be displayed on EVF/LCD.
5. Display power supply icon
   　Power supply icon is displayed on EVF/LCD while using AC adapter (AC-9VS), or Anker PowerCore+ 26800 PD
6. Fix of slight defects.

http://www.fujifilm.com/support/digital_cameras/software/firmware/x/xh1/index.html