The Video Experience
The improved sensor and processor of the Fujifilm X-H2S open up a massive suite of video upgrades and this camera. You can capture 6.2K footage up to 30P, where you're capturing the entire sensor readout. This open gate approach is a killer feature when looking to recompose the in post, especially for vertical content. At 10-bit 4:2:2 internally, with bitrates as high as 720Mbps, the footage here will push your machine, but the quality of these files is rich. When you lock in the proper exposure, you have something with much more latitude for post-production.
I'm seeing an improvement in the dynamic range that makes this much more competitive than before. Fujifilm is marketing 14+ stops of dynamic range with their new F-Log2, which has a floor ISO of 1250. Standard F-Log will lower starting ISO to 640 and deliver 12+ stops of dynamic range. It is worth noting that this camera does not have a dual native ISO sensor. Fujifilm has a linear noise reduction system in place to manage noise. Additionally, using a film simulation will vary between 12-14 stops of dynamic range depending on which one you use, and HDMI RAW will deliver about 13+ stops of dynamic range. Still, it's worth mentioning that this format will require an external recorder.
At 4K, you can expect to capture at 120FPS, marking another closed gap between Fujifilm and its competitors. However, the 120FPS mode is only available in the high-speed settings with no audio capture in this mode, and if you're using this, there'll be about a 1.3x crop. The standard 4K settings go up to 60P. If you plan on capturing in the highest fidelity, you may want to invest in more storage. On a 128GB card, you'll get a little over 7 mins at the highest ProRes internally, and depending on the bit rate, you'll get anywhere between 23 minutes and 5 hours when you capture in H.265.
For my work, I turn off the in-camera sharpness and noise reduction. Even so, at 6K the footage looks plenty sharp. The 4K footage seems to look a little crispier (in a good way) which is thanks to the oversampling being done by the sensor. The 5th generation processor has a sub-processor dedicated to in-body image stabilization that promises up to 7 stops of compensation. Concerning the video, this feels like something that has gotten noticeably better so far. I want to spend more time with it, but the camera doesn't seem to work against intentional camera movements as previous versions did.
This camera has accompanied me in the office, on a hot day at the zoo, and even in the sweaty backstage of a festival. I have yet to see a thermal warning from this camera, let alone have the camera shut down during a recording. It's always good to flip out the LCD during extended recordings to improve the heat dissipation, and you can even buy the new Fujifilm cooling pack to help flush heat away from the camera. However, in my tests so far, I never met a situation where I've needed this accessory.