Fujifilm GFX100S

The Fujifilm GFX 100S is a 102-megapixel medium format mirrorless camera built around a 43.8 x 32.9 mm CMOS sensor, featuring in-body image stabilization, phase-detection autofocus with 425 points, 4K DCI video, and weather sealing — all packed into an 819-gram body using the Fujifilm G lens mount.

Key Specifications

• Sensor: 43.8 x 32.9 mm CMOS (Medium Format), 102 megapixels, 11,648 x 8,736 pixel resolution
• ISO: 100–12,800 native, extended 50–102,400
• Autofocus: 425 phase-detection AF points
• Stabilization: In-body image stabilization (IBIS)
• Video: Up to 4K DCI (4096x2160); maximum video frame rate 60fps; 2K up to 2048x1080
• Shutter: 1/16,000s max shutter speed, rated 150,000 actuations
• Viewfinder: 3.69M-dot EVF, 100% coverage, 0.77x magnification
• Screen: 3.2-inch articulating touchscreen, 2.36M dots
• Lens mount: Fujifilm G mount — compatible with the full range of GF lenses
• Connectivity: USB-C (with charging), HDMI, dual UHS-II SD slots, Wi-Fi, Bluetooth, headphone and microphone jacks
• Body: 150 x 104 x 87 mm, 819 g, weather-sealed, NP-W235 battery (~460 shots)

What makes the Fujifilm GFX 100S special?

The GFX 100S is essentially a compact, more accessible evolution of the original GFX 100 — same 102MP sensor and 16-bit RAW output, but in a noticeably smaller and lighter body. The crop factor of 0.79x means the sensor is larger than full-frame, so every lens you put on it renders with a broader field of view and genuinely different rendering characteristics compared to 35mm systems.

The standout technical achievement is fitting in-body image stabilization into this size of body while keeping it weather-sealed. IBIS in a medium format camera opens up handheld shooting at slower shutter speeds — something that was practically impossible with older digital medium format systems. Paired with the 1/16,000s max shutter speed, you get real flexibility in bright outdoor conditions too.

The X-Processor 4 handles the data load from that 102MP sensor and enables phase-detection AF — a genuine leap over contrast-detect systems on older medium format cameras. The 425 AF points cover the frame well, though the 5fps burst rate reflects the reality of moving huge RAW files.

For lens options, the Fuji GF lineup covers the system comprehensively. The Fujifilm GF 55mm f/1.7 R WR stands out as the fastest GF prime, the Fujifilm GF 110mm f/2 R LM WR is a favourite for portrait work, and the Fujifilm GF 23mm f/4 R LM WR handles architecture and landscapes well. A versatile starting zoom is the GF 32-64mm f/4 R LM WR, which many GFX shooters keep on the camera as a workhorse.

Compared to alternatives like the Hasselblad X2D or Phase One systems, the GFX 100S sits at a significantly different price point while delivering comparable resolution and better video capabilities. Sony's full-frame lineup (like the Sony Alpha 7R V) offers faster autofocus and burst speeds but cannot match the sheer pixel count and sensor size of the GFX 100S.

Who is the Fujifilm GFX 100S for?

This camera is genuinely purpose-built for photographers who need the highest possible image quality from a handheld system — and who mostly shoot subjects that don't move fast.

• Landscape photographers get enormous files with extraordinary dynamic range and detail, plus weather sealing for outdoor conditions. The articulating screen is useful for low-angle compositions.
• Portrait and wedding photographers benefit from the subject-rendering quality of a larger sensor, the shallow depth-of-field characteristics unique to medium format optics, and fast GF lenses like the GF 110mm f/2. The GFX 100S is a practical wedding camera in a way that older, bulkier medium format systems never were.
• Macro and product photographers love the 102MP files for revealing fine detail — think jewellery, textiles, or botanical subjects where you need to crop heavily or produce extremely large prints.
• Studio photographers who previously used medium format film or digital backs will find the GFX 100S a natural fit. The hot shoe supports Fujifilm TTL flash, and the dual UHS-II card slots provide reliable backup workflows.

What the GFX 100S is not: it's not a sports or wildlife camera. The 5fps burst rate and AF system, while capable, don't compete with fast full-frame bodies for tracking erratic movement. If that's your primary use case, a Sony Alpha 7 IV or a Canon EOS R5 will serve you better.

About this used Fujifilm GFX 100S

A used GFX 100S is one of the most sensible second-hand buys in the premium camera market. The camera was built for professional and serious enthusiast use, which means most pre-owned examples have been well-maintained by their original owners.

We have thoroughly inspected this unit across all critical areas:

• Shutter count: We have verified the shutter count and documented it in the inspection report below. The shutter is rated for 150,000 actuations, so a well-maintained body with under 50,000 shots still has the vast majority of its mechanical life remaining.
• IBIS function: We have tested image stabilization across various focal lengths and confirmed smooth, consistent performance.
• Weather sealing and body condition: We have inspected the lens mount, card slot doors, and port covers for signs of heavy use or moisture damage.
• Articulating screen: We have tested the hinge mechanism — it moves smoothly with no play or stiffness.
• Sensor cleanliness: We have inspected the sensor for dust, spots, or fungus using proper lighting techniques.