At the heart of the GFX 100S platform is the 102MP 44 x 33mm BSI CMOS sensor, which offers the ultra-high resolution coveted by stills photographers as well impressive 4K video recording options, too. The sensor pairs with the X-Processor 4 in order to output 16-bit raw imagery with a broad dynamic range, low noise levels, and sensitivity to a ISO 12800, and the BSI design of the sensor contributes to high clarity and accurate color rendering when working in a variety of lighting conditions. In terms of video, DCI and UHD 4K video recording is possible at 4:2:0 10-bit internally, 4:2:2 10-bit via HDMI, or raw 12-bit if recording externally, and an F-log gamma setting can also be used for more advanced color grading during post-production. Beyond high-resolution shooting, the unique sensor design also incorporates a sophisticated hybrid AF system that features 425 selectable phase-detection points, which cover nearly the entire frame, and aid with precise face and eye-detection modes.
Balancing the awesome sensor design is a notably compact form factor, which opens up a range of new working scenarios for this high-res platform. Sleek and lightweight, the portability of the GFX 100S is backed up by capable in-body image stabilization that compensates for up to 6 stops of camera shake for improved handheld shooting. Conversely, this stabilization system also enables making 400MP files using Pixel Shift Multi-Shot mode for extreme detail of still subjects. Also contributing to the sleek form factor is a fixed 3.69m-dot EVF for bright eye-level viewing and a rear 3.2″ touchscreen LCD with a three-way tilting design.