Juliya

The Medium Format Evolution

The Fujifilm GFX 100 II, known during its development by the internal codename Juliya, represents a significant shift in the GFX System architecture, moving medium format photography from a traditionally slow, methodical process into a high-speed, versatile production tool. At its core is a newly developed 102-megapixel high-speed CMOS II HS sensor measuring 43.8 x 32.9mm. This sensor provides an active imaging area approximately 1.7 times larger than a standard 35mm full-frame sensor, resulting in a diagonal measurement of 55mm. This physical scale allows for larger individual photosites, which in turn facilitates superior signal-to-noise ratios and a broader dynamic range. The sensor is integrated with the X-Processor 5, a processing engine that utilizes 64-bit technology to double the signal readout speed compared to the previous GFX 100S. This hardware combination enables the camera to achieve a continuous shooting speed of 8.0 frames per second using the mechanical shutter, a figure previously reserved for smaller sensor formats. For sports or action sequences, the increased readout speed significantly mitigates rolling shutter distortion when using the electronic shutter, allowing for the capture of fast-moving subjects like a tennis serve or a vehicle in motion without the geometric warping common in slower medium format sensors.

The flagship positioning of the Juliya is further cemented by its modularity and interface design. Unlike its predecessor, the GFX 100, which featured an integrated vertical grip, the GFX 100 II adopts a more compact, streamlined body while retaining professional-grade ergonomics. It features a removable 9.44 million-dot EVF with 1.0x magnification and a 120fps refresh rate, providing a lag-free view essential for tracking subjects in a studio or on location. The body is constructed from magnesium alloy and is weather-sealed at 60 different points, ensuring operational reliability in temperatures as low as -10 degrees Celsius and in high-humidity environments. For commercial photographers working in a tethered environment, the inclusion of a dedicated 1Gbps Ethernet port and a USB-C (USB3.2 Gen2x2) port allows for high-speed data transfer directly to a workstation or via the Frame.io Camera to Cloud integration, bypassing the need for physical card swaps during a high-volume fashion shoot.

Unrivaled Tonal Depth and Resolution

The Juliya utilizes its 102-megapixel resolution to produce files with a native pixel dimension of 11648 x 8736. This extreme resolution is paired with an improved pixel structure that increases the electron saturation level, allowing for a native base ISO of 80. When shooting at ISO 80, the camera provides a wider dynamic range and lower noise levels than previous iterations, making it particularly effective for landscape photographers who require maximum detail in both deep shadows and bright highlights. The camera supports 16-bit RAW files, which contain over 281 trillion colors, providing a level of tonal gradation that prevents banding in subtle gradients, such as a clear blue sky or the soft fall-off of light on a subject's skin in a portrait session. For commercial textile photography, this bit depth ensures that the intricate textures and color nuances of high-end fabrics are preserved with mathematical precision.

The introduction of the REALA ACE film simulation provides a neutral, high-fidelity color science based on Fujifilm’s legacy color negative film. This simulation is designed for accuracy, making it the preferred choice for product photography where color matching is critical. In addition to standard high-resolution capture, the Juliya features a Pixel Shift Multi-Shot mode. This mode uses the In-Body Image Stabilization (IBIS) mechanism to shift the sensor by 0.5 pixels between 20 separate exposures. When combined in post-production using the Pixel Shift Combiner software, the result is a 400-megapixel image with full RGB color information at every pixel location, eliminating moiré and false colors. This is a critical feature for art reproduction and archival work, where the goal is to capture the microscopic detail of brushstrokes or the texture of historical documents. The camera also includes a dedicated "Nostalgic Neg" simulation and "Eterna Bleach Bypass," offering creative flexibility for editorial shoots without sacrificing the underlying raw data integrity.

Cinematic Capabilities and Video Integration

The GFX 100 II marks the first time a medium format camera has been fully optimized for high-end cinema production. It is capable of recording 8K/30p video internally at 4:2:2 10-bit. The large sensor allows for a unique "medium format look," characterized by a shallower depth of field and a wider field of view compared to Super 35 or full-frame sensors when using equivalent focal lengths. The camera supports multiple cinema formats, including Premista, 35mm, and Anamorphic (with de-squeeze options in-monitor). When shooting in 4K/60p, the camera utilizes the full width of the sensor (with a negligible 1.01x crop), ensuring that the characteristic bokeh and compression of GF lenses are maintained in motion. For professional color grading workflows, the inclusion of F-Log2 provides over 14 stops of dynamic range, allowing cinematographers to retain detail in high-contrast scenes, such as an interior shot with bright windows in the background.

Internal recording options are extensive, featuring support for Apple ProRes 422 HQ, ProRes 422, and ProRes 422 LT directly to CFexpress Type B cards. The camera also supports recording directly to an external SSD via the USB-C port, which is a cost-effective solution for long-form documentary recording or high-bitrate 8K projects. For monitoring, the Juliya includes a full-size HDMI Type A port, which is more robust than the micro-HDMI ports found on smaller cameras. It also features a dedicated waveform monitor and vectorscope display, allowing DPs to monitor exposure and color balance with precision. The AF system in video mode is equally advanced, supporting subject tracking for humans, animals, and vehicles, which is particularly useful for gimbal-mounted operation where manual pulling of focus on a medium format sensor would be exceptionally difficult due to the thin plane of focus.

Precision Handling and Autofocus

The autofocus system in the GFX 100 II is powered by an AI-based subject-detection algorithm developed using deep-learning technology. This system can automatically detect and track a wide range of subjects, including birds, horses, cars, motorcycles, airplanes, and trains. In a commercial automotive shoot, the camera can lock onto the front grille or cockpit of a moving vehicle and maintain focus even as the car approaches the camera at high speeds. The Face and Eye Detection AF has also been refined to maintain lock on subjects even when they turn away from the lens or when their face is partially obscured by hair or accessories. This is supported by 425 selectable AF points covering nearly 100% of the sensor area, providing composition flexibility that was previously a limitation of medium format systems.

To support the high resolution of the sensor, the Juliya features an upgraded 5-axis In-Body Image Stabilization (IBIS) system that provides up to 8.0 stops of compensation. This is the highest stabilization rating in the GFX system to date. This allows photographers to shoot handheld at shutter speeds as slow as 1/2 or 1/4 of a second with lenses like the GF 63mm f/2.8 R WR, making it possible to work in low-light environments without a tripod. The physical interface includes a three-way tilting 3.2-inch LCD monitor with 2.36 million dots, facilitating high-angle and low-angle shooting in both landscape and portrait orientations. The top panel features a large sub-LCD that displays exposure settings, a live histogram, or a virtual ISO dial, which remains visible even when the camera is powered off. For professional connectivity, the camera includes dual card slots: one for CFexpress Type B, which is required for high-speed bursts and 8K video, and one for UHS-II SD cards, providing a versatile backup or overflow option. The inclusion of a 3.5mm microphone jack and a 3.5mm headphone jack, along with compatibility with the FAN-001 cooling fan accessory, ensures the camera can handle sustained professional use in demanding environments.

For studio photographers, the GFX 100 II offers a refined tethering experience. It is fully compatible with Capture One Pro and Adobe Lightroom Classic, supporting high-speed image transfer and remote camera control. The 11-degree tilted top panel is designed for better visibility when the camera is mounted on a tripod at waist level, a common configuration in product and food photography. The shutter unit is rated for 500,000 actuations, reflecting the camera's intended use as a high-volume professional workhorse. Whether capturing a high-fashion runway at 8fps or recording a 10-bit 8K commercial, the Juliya provides a technical foundation that bridges the gap between the image quality of large-format film and the operational speed of modern mirrorless systems.