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Fujifilm GFX100 Review - Performance

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Fujifilm GFX 100 Performance

The performance section is where we look at the image quality performance of the camera. Additional sample photos and product shots are available in the Equipment Database, where you can add your own review, photos and product ratings.



Fujifilm GFX 100 Sample Photos

Sample Photos - The Fujifilm GFX100 gives Fujifilm's excellent colour reproduction, with lots of control over the look of images, combined with exceptional levels of detail, with sharp JPEG images produced straight from the camera. Exposure is reliable, and dynamic range captured is very good, with plenty of control to expand this. Film (colour) modes include Provia / Standard, Velvia / Vivid, Astia / Soft, Classic Chrome, Pro Neg Hi, Pro Neg Standard, Eterna / Cinema, Acros, Monochrome, and Sepia.

Face detection, and eye-detection focus works extremely well, and the portrait session we had, gave us an extremely high success rate as a result. Skin tones are excellent, and focus, and levels of detail are very impressive.  

A note on file sizes: some of these JPEG images are as big as 63MB, 65MB! Compressed raw files are 110MB, uncompressed raw files are up to 200MB in size. 

The DR (Dynamic Range) options of DR100, DR200, and DR400 work well to increase the dynamic range captured in a shot, although it worth being aware of the fact that the camera increases the ISO speed as this setting is increased, so DR400 uses ISO400 for example. You can adjust the highlight and shadow tone, as well as the colour, sharpness and noise reduction settings. There's also a D-Range priority option, which will reduce contrast in the image, to help store more detail in highlight and shadow areas. 



Fujifilm GFX 100 Lens test images

Lens Performance - What's quite impressive is how successful shots are when simply using the camera out and about. You don't need a tripod, you don't need to double check focus, the camera will focus perfectly time after time, and produce incredibly sharp results shot after shot.

The level of detail captured is outstanding, and at a pixel level, when images are viewed at 100% (actual pixels), the detail remains crisp and sharp, it's a joy to view the levels of detail in each photo. The background (and foreground) blur is pleasing with very pleasing bokeh possible, and shots of simple objects, such as the photo of the bicycle will "pop" from the frame. 

Fujifilm GFX 100 Outdoor images

You can choose between 16-bit and 14-bit raw recording, with the option of uncompressed or lossless compressed raw files. The camera has the "Lens Modulation Optimizer" built-in which is designed to reduce diffraction and corner softness for Fujifilm lenses. We did not spot any signs of vignetting, when using the 32-64mm or the 110mm lens. We noticed some purple fringing, in areas of high contrast (such as leaves / trees against a bright sky), particularly towards the corners of the frame, but in the majority of other shots this wasn't a problem. 



Fujifilm GFX 100 ISO test images

ISO Noise Performance - The camera has an ISO Range from ISO50 (Low) up to ISO12800, which then extends to ISO25600 (Hi), ISO51200 (Hi), and ISO102400 (Hi). Using ISO50 the camera records less dynamic range in images. 

The camera has extremely low levels of noise, giving very clean images at lower ISO speeds, up to ISO400. There's a slight increase in noise at ISO800, visible in some of the colour (and darker greys) when viewing images at 100%, and some of the fine detail recorded is reduced. Noise increases again at ISO1600, and fine detail drops again. At ISO3200 the drop in fine detail is more noticeable, and again at ISO6400. There's a bigger drop in fine detail at ISO25600, but noise levels remain well controlled, and results at ISO51200 are fairly reasonable, although we'd probably avoid using it if possible. 


Here's a crop of the ISO test images, to show how fine detail (dust and fibres) are recorded, and how this detail is lost as the ISO speed increases. Click the image to view it at 100%, full size, actual pixels. 

Fujifilm Gfx100 Fine Detail ISO Speeds |


Compared to the 50mp Fujifilm GFX50R when we reviewed the GFX50 we said that ISO25600 was the highest ISO speed we'd want to use, and that ISO51200 was best avoided. The GFX 100 gives better results at these ISO speeds which is impressive considering the higher pixel count, and smaller pixel size.



Fujifilm GFX 100 White-balance test images

White Balance Performance - Auto White Balance (AWB) gives a warm result under tungsten light, with the tungsten preset also giving a warm result. Because there is no "White priority / bias" option for the auto white balance, for accurate white balance results, you'll need to use manual white balance, or customise the  you white balance setting, by adjusting the red and blue bias. AWB performs very well under fluorescent lighting with a very accurate white colour. There are a number of fluorescent presets, all of them giving a colour cast. The camera gives warm results under mixed lighting. 



Video - The Fujifilm GFX 100 offers CINE-4K / DCI-4K, 4K (UHD), and FullHD video recording. 4K video recording uses the full width of the sensor without cropping. 

There are a number of different resolution, frame rate, and compression options:

DCI-4K 17:9 4K (UHD) 16:9 FullHD 17:9 FullHD 16:9
    59.94, 50fps 59.94, 50fps
29.97, 25, 24, 23.98fps 29.97, 25, 24, 23.98fps 29.97, 25, 24, 23.98fps 29.97, 25, 24, 23.98fps
400, 200, 100mbps 400, 200, 100mbps 200, 100, 50mbps 200, 100, 50mbps


Plus: H.265 (HEVC), 4:2:0 10bit (to SD), 4:2:2 10bit (HDMI), or H.264, 4:2:0 8bit (SD), 4:2:2 10bit (HDMI). Additional compression options of ALL-Intra or Long-GOP.

Eterna / Cinema film simulation (colour) is available, and you can set the dynamic range to DR100, DR200 or DR400. Interframe Noise Reduction can be set to on or off. You can also use F-Log / HLG (Hybrid Log Gamma - ITU-R BT.2100) recording to have a wide dynamic range.

There are numerous controls and options, including face and eye detection focus, which can be used in video recording. HDMI record control is available, plus Zebra view, time-code settings, and control over the tally light. There's also a movie silent control option.  

The camera can record, or rather the battery will last for up to 100 minutes of 4K video (with face detection off), or 150 minutes of FullHD video. 

There are built-in microphone and headphone sockets, and the camera has built-in stereo microphones. You can adjust the internal and external mic level, or leave this on auto. 

Video quality is very sharp, detailed, and clear. The in-body image stabilisation does a good job keeping video stable and steady even when using the camera handheld. The ISO speed can be set from ISO200 to ISO12800 (Native), and ISO25600 (Hi).

Additional video footage can be found on the ePHOTOzine YouTube Channel


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Chris_L 7 5.5k United Kingdom
23 Aug 2019 12:03AM
Wow at all of the specs - and the price.

BUT I can't believe for 10 thousand pounds they can't offer 8k or even 6k video. a 100 million pixels but about 92 million are thrown away for video. I suspect that it might have been too technically challenging to capture the sensor, downsize to 8k (properly) and record it to a card around 25 times every second.
24 Aug 2019 8:16PM
I think that all the worries about the computing power needed to process these 100mp images are over-exaggerated, mostly. My 2012 machine handles them rather well. It only takes longer to export the results. However, it's not something a cheap laptop could easily digest. But then, if you are spending this kind of money on camera and lenses, you should be able to afford a proper computer too. The file size will cost you extra storage. But a pair of 10TB drives costs "only" around $600 now ($300 each). That's way cheaper than the memory cards that you'll use in this camera.
"Beauty requires sacrifice"

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