Dynamic Range

ISO Invariance

We're previously seen good results from Fujifilm. Indeed its DR modes are possible because the sensor's low noise levels mean you can use short exposures at low amplification levels and brighten with a dramatic tone curve: exactly the property we look for in our ISO Invariance test.

As you can see, if given the same exposure, there's not significant difference between shooting at ISO 3200 compared to shooting at ISO 200 and brightening the image later. Except, of course, there is a difference: the ISO 200 image will have up to 4EV of additional highlight information that can be used, rather than being amplified to the point of clipping in the ISO 3200 file.

Exposure latitude

If we look at exposure latitude (the ability to incorporate additional shadow detail into the images), you can see the Fujifilm looks pretty similar to the results of the Nikon D5600: probably the best-performing 24MP APS-C chip on the market.

Of course this test isn't about making 5 and 6EV adjustments, it's about seeing the differences in noise level that will appear in brightened shadows or increases in contrast in the shadows, even after smaller pushes.

The files we're comparing here were shot at the same exposure settings (shutter speed and aperture value), so have the same amount of photon shot noise, making it a fair comparison. The difference is that the Nikon and Sony models appear to be using their sensors slightly differently to offer a full ISO 100 mode, meaning they could be given more light. By comparison, the X-H1's ISO 100 mode clips highlights slight early, revealing a higher base level of amplification and a fraction less (~0.5EV) maximum dynamic range.

Overall the files have an impressive amount of flexibility when you process them.