Revolving around a highly versatile sensor, the X-T4 features an APS-C-format 26.1MP X-Trans CMOS 4 sensor, which has a back-illuminated design to afford smooth tonal rendering, improved low-light performance, and a wide native sensitivity range of ISO 160-12800. As an X-Trans sensor, it utilizes a randomized pixel array, too, which provides a high degree of image quality and sharpness due to the omission of an optical low-pass filter. Versus conventional pixel patterns, the X-Trans design more closely mimics the organic nature of film in order to produce nuanced colors and tonal transitions, while also reducing moiré and aliasing. The sensor's design also includes an expanded phase-detection autofocus system, which has 425 selectable points that cover nearly the entire sensor area. This AF system delivers faster, more accurate focusing performance in a variety of lighting conditions down to -6 EV. Complementing the imaging and focusing capabilities, an updated X-Processor 4 is also featured, which has a quad-core CPU, and delivers faster, more responsive performance throughout the camera system, including a full-resolution 15 fps shooting rate with the mechanical shutter, 20 fps rate with an electronic shutter, or a 30 fps rate with an electronic shutter and a 1.25x crop.

Built-in 5-axis sensor-shift image stabilization helps to minimize the appearance of camera shake by up to 6.5 stops. This system works in conjunction with most X Series lenses, including non-stabilized ones, and benefits working with slower shutter speeds and when shooting in difficult lighting conditions. Additionally, 4-axis digital image stabilization can also be used during video recording to further aid in steadying footage, especially when recording handheld.

Expanding its capabilities beyond stills, the X-T4 offers a versatile array of video capabilities, including internal DCI/UHD 4K recording at up to 60 fps and Full HD recording up to 240 fps for ultra slow-motion playback. Greatly benefitting overall video performance, the speed of the X-Processor 4 enables fast read speeds when recording video and helps to reduce rolling shutter distortion when filming moving subjects. Also, a micro-HDMI port enables 10-bit 4:2:2 recording to an optional external recorder. In addition to the supported 10-bit color depth, the X-T4 also includes the F-Log gamma setting, which provides a flat picture for use in advanced color grading software during editing. This maximizes the potential dynamic range in difficult scenes and image adjustments can be made, as well, to highlight tone, shadow tone, color, and sharpness. Also, the camera features a 3.5mm microphone jack and 2.5mm remote port with included headphone adapter for more advanced audio solutions.

• Bright, high-resolution 3.69m-dot OLED electronic viewfinder has a 0.75x magnification and the EVF's refresh rate can be pushed to 100 fps to reduce lag for smoother panning and tracking movements.
• Vari-angle 3.0" 1.62m-dot LCD has a touchscreen design for intuitive operation and playback, and the articulating design greatly benefits working from high and low shooting angles. This vari-angle design also means you can close the screen against the camera body, hiding it from view for distraction-free shooting.
• The top plate incorporates a series of locking dials and levers for fast, intuitive control over exposure settings, including dedicated shutter speed, ISO, and exposure compensation dials that offer direct settings adjustment, even when the camera is off. This exposure compensation dial also has a C position to afford an expanded +/- 5 EV range when working with the command dials.
• Front and rear command dials integrate a push function for easier use and settings selection.
• Rear joystick is available for intuitive selecting and switching of AF points as well as menu navigation and image playback.
• Redeveloped mechanical shutter has improved durability and is rated for 300,000 actuations.
• Integrated Bluetooth and Wi-Fi connectivity allows for wirelessly sharing images to a mobile device or to use the device to remotely control the camera.
• Dual SD memory card slots both support up to the UHS-II standard for fast and flexible file storage.
• Included NP-W235 battery provides approximately 600 frames per charge when working with the EVF.

• Taking advantage of FUJIFILM's vast history in traditional film-based photography, the X-T4 integrates several Film Simulation modes, which mimic the look and feel of some of FUJIFILM's classic film types:
  • Provia: The standard contrast and normal saturation color transparency film
  • Velvia: High contrast, high color saturation, and vivid color transparency film
  • Astia: Subdued contrast and color saturation with a look that is ideal for portraits
  • Classic Chrome: Delivers muted tones and deep color reproduction, similar to a dated slide film
  • Classic Neg: Muted contrast but vibrant colors with a vintage filmic feel
  • PRO Neg: Available with both Hi and Std. contrast options, this mimics the punchy-but-natural feeling of their professional-grade color negative film
  • Eterna: For a cinematic look, this provides a flat color, low saturation look well-suited to post-production color grading
  • Eterna Bleach Bypass: Refines the standard Eterna look with a higher key, higher contrast feeling while maintaining the overall desaturated look
  • Acros: Based on the popular B&W film, this monochrome mode has a distinct tonality and graininess and can be used along with Yellow, Red, and Green contrast filter effects
  • B&W: Straightforward and classic black and white effect with Yellow, Red, and Green contrast filter options
  • Sepia: Everyone's favorite old-timey look mimicking the popular alternative process
  In addition to simulating specific film types, a Grain Effect mode is also available to replicate the look of old film photos with an organic textured appearance, which is especially noticeable when printing. Color Chrome and Color Chrome Blue effects are also available to deepen color, tonal response, and gradation with higher saturation colors.

Bundled with the camera body is a versatile zoom that covers many different scenarios. The XF 18-55mm f/2.8-4 R LM OIS lens features a 27-84mm equivalent focal length that covers wide angle to telephoto perspectives with ease. The f/2.8-4 maximum aperture range ensures both speed and compactness in terms of design and it features three aspherical and one extra low dispersion element for combating aberrations. Also, a linear autofocus motor ensures fast performance while an optical image stabilizer will limit the effects of camera shake.