Fujifilm GFX100S - 102MP Medium Format Camera Review - From a Sony User
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I recently had the chance to try out the Fujifilm GFX100S, my very first medium format camera. Coming from years of shooting mainly on Sony full-frame bodies, I was curious to see how different the experience would be. I only had the camera for about a week, but I also borrowed a few lenses: the GF 45–100mm, the 120mm Macro, the 110mm, and the 50mm. Here’s what stood out to me.
Medium Format vs Full Frame
The GFX100S has a larger sensor than a full-frame camera (43×32mm vs 36×24mm) — about 79% bigger. That extra size gives a different depth of field and look compared to full frame. The crop factor here is 0.79, so lenses behave a little wider and slightly faster than their f-stop numbers suggest.
Things I Liked
Resolution & Colors – 102 megapixels is massive. The files are sharp and detailed, and Fuji’s film simulations add really pleasing colors straight out of camera.
Build & Handling – The camera feels solid, with dual card slots, a helpful top display, and a neat switch to toggle between stills and video modes.
Menus – Much easier to navigate than older Sony menus.
Screen & Charging – The tilting screen is more versatile than Sony’s older flip designs, and being able to charge over USB-C is handy.
Video Features – F-Log, HLG, 10-bit 4:2:0 internal recording, 4:2:2 or ProRes RAW with an external recorder. Plus 5-axis IBIS, mic and headphone jacks, and in-camera audio tools. Pretty impressive for a medium format body.
Things I Didn’t Love
Weight & Size – At about two pounds (plus heavy GF lenses), this is not a grab-and-go camera. Once rigged up, it gets bulky fast.
Autofocus – Face and eye detection exist, but they’re not as reliable or fast as Sony’s. I found myself constantly checking focus.
Video Limits – 4K tops out at 30fps, and 1080p at 60fps. No 120fps slow motion here.
Speed – With only 5fps bursts, this isn’t built for action or sports.
Final Thoughts
Shooting medium format for the first time was exciting. The GFX100S is best suited for studio, portrait, and controlled environment work, where the resolution and Fuji color science really shine. For hybrid shooters who need equal strength in photo and video, something like the Sony A1 might be a better fit.
Still, the GFX100S was a joy to use for a week. It gave me a new appreciation for the medium format look, even if it’s not the most practical everyday camera.
