Both significantly smaller and much more affordable, the just-launched Fujifilm GFX100S medium format camera compares favorably to the GFX100 (without the S). For filmmakers, it still brings the same capabilities -- using the full sensor width, it can record in DCI4K (4096 x 2160) at up to 29.97p, internally with 10-bit 4:2:0 F-log or externally via HDMI (such as with the Atomos Ninja V monitor/recorder) in 10-bit 4:2:2 F-log or 12-bit ProRes RAW.
Like the GFX100, the new introduction features a 102MP BSI medium format sensor (43.8mm x 32.9mm) as well as the X-Processor 4. However, it measures only 150 x 104.2 x 87.2mm, 900g weighs the body including battery and memory card, about 500g less. The differences to the larger GFX100 are mainly in the EVF, which is fixed in the S-model and has a lower resolution (3.69 million pixels), and in the photo mode only 14 bit RAW is supported instead of 16 bit. There is also no optional battery grip for this camera.
On the other hand, the GFX100S has a newly developed shutter and the stabilization by means of a movable sensor (IBIS) has also been improved, as it seems. In combination with the optical stabilization of the GF lenses, a correction performance of up to 6 f-stops should now be achieved. The autofocus algorithms have also been revised to focus faster in dark environments.
When filming, the ISO range is from ISO200 - 12800 (extended to ISO25600), and the data rate in 4K mode is up to 400Mbps. In FullHD, it is possible to record at a maximum of 59.94p. There doesn&t seem to be a 30-minute limit when filming, the GFX100S films up to 120min.
Besides F-Log, the camera also supports Hybrid Gamma Log (HLG) recording. In addition, 19 FUJIFILM Film Simulation modes can be applied, including Eterna / Eterna Bleach Bypass.
The magnesium alloy body is weatherproof and supports operation in temperatures as low as -10°C. Two 3.5mm stereo mini-jack connectors are on board for microphone and headphones, and there is also a dual card slot (Speed Class V90 is required for video).
The Fujifilm GFX 100S is expected to be available in February for ,999; the big GFX100 cost ,999 at launch, nearly double that.
Fujifilm GFX 100S with Fujinon Premista Cine lens