From the Manufacturer:

Featuring a 12-group, 17-element lens configuration, the manual optical 26x zoom is a masterpiece of FUJINON technology. The extravagant adoption of high optical performance glass lens elements (aspherical, high refractive index, and ED glass lenses) make the exceptional brightness of F2.8 at wide angle and F5.6 at telephoto possible.

By using 4 high-performance aspherical lenses, the X-S1 delivers sharp image quality with rich resolution. These lenses also contribute to a more compact overall lens configuration and the X-S1's compact body size ensuring you can easily take it everywhere with you.

ED Lenses for prevention of chromatic aberrations and muddy colors.
In order to minimize chromatic aberration which tends to occur when taking telephoto shots with a long zoom lens, two ED lenses made of extra-low dispersion glass have been adopted in the lens configuration. Adoption of one large-diameter ED lens in the first lens group reduces axial chromatic aberration that can occur at high zoom settings.

All the lens elements used in the X-S1 have been treated with multilayer Super EBC (Electron Beam Coating), the same process used for Fujinon broadcasting video lenses and large-format camera lenses acclaimed by professionals. Reducing ghosting and lens flare, the treatment promises clear image quality.

Optimized for exquisite detail all the way to the edge of the image.
The FUJINON Lens and the EXR CMOS Sensor are the cutting edge of original FUJIFILM high-performance technology. These key devices have not only been adopted in the new X-S1, but also thoroughly optimized for each other, resulting in a synergy that produces high-resolution photos with exceptional resolution from the center to the edge of the image with extremely few aberrations.

Complete control of the camera, without fear of camera shake. Equipped with a newly developed image stabilization mechanism, X-S1 effectively compensates for camera shake even when you press the shutter to capture a subject at extreme zoom.

Fast and precise zoom control for the wide photographic range of X-S1.
X-S1 embodies operability that lets you fine tune every shot to perfection. In the easy-to-hold slim zoom lens barrel, the metal cam-driven zoom mechanism delivers a subtle sensation of torque for smooth and precise adjustment.

9-blade aperture diaphragm for an expressive “bokeh” effect.
Special attention has been paid to enabling a beautiful “bokeh” effect. The 9-blade aperture diaphragm lets you artistically put the focus on your subject while creating a softly defocused near-circular background.

Only the EXR CMOS sensor can intelligently switch between three original technologies depending on the scene and always capture the moment in exquisite detail and with impressive image quality. Featuring FUJIFILM's bespoke pixel array, the large 2/3-inch EXR CMOS sensor captures images with impressive resolution.

Sufficient light quantity is collected not only in the center of the sensor, but all the way to the edge area by optimization of both the image sensor and lens.

Working in tandem with the 2/3-inch EXR CMOS sensor, the EXR Processor achieves a new level of performance. Tapping into the power of its two CPUs, EXR Core and a reconfigurable processor, it provides powerful and speedy processing, even Full HD Movie and high-speed continuous shooting.

Able to capture both photos and movies in high-definition 16:9 format, the X-S1 lets you discover the impact of full-screen HDTV image display.

This single unit is capable of capturing video in a broad focal length range from wide angle to telephoto.

You can also use manual focus or capture still images during video recording for full-fledged filming pleasure.

Connect X-S1 directly to a high definition TV using the optional HDMI cable to view your video easily on large screen. You can also connect the unit to an external stereo microphone to achieve stereo recording.

Faster response for fleeting moments.
Fast 0.18sec. auto focus, 0.01sec. near-instant shutter time lag and the fast 0.6sec. camera startup! Every facet of operation is accelerated so you will never miss a shot.

Capture action at almost 7fps at full 12 megapixel resolution (max. 8 frames) or shoot at 10fps at 6 megapixel resolution (max. 8 frames). Sometimes things happen too fast for you to see them properly with your own eyes. The X-S1 can freeze the action at up to an amazing 200fps! So you can see every single minute detail and watch things happening step by step in slow motion.

Timing your shot is ever so easy with Best Frame Capture. Half-press the shutter and the X-S1 starts recording photos at 10fps at 6 megapixel resolution. When the moment happens, fully press the shutter button and the camera captures up to 16 frames including pre-recorded frames, giving you the opportunity to select the best shot.

Framing and composing shots while viewing the large 0.47-inch screen with 1,440,000 dot resolution in the X-S1 electronic viewfinder is a true pleasure. Light is captured with amazing fidelity by 2 glass lens elements and 1 aspherical lens, and the image is displayed on a bright LCD panel. The EVF boasts a wide 26° field of vision and brightness.

The unique advantage of EVF is its ability to give you an accurate depiction of what the final image will look like. Depth of field, colour temperature, colour mode and other desired image quality settings are reflected in the image displayed in the viewfinder without the influence of the lens F-value so you can compose the image without guesswork. The final photo reflects exactly what you aimed to create in the viewfinder.

Put your eye to the EVF and Eye Sensor automatically switches display from the LCD to the highly responsive viewfinder.
1. Eye Sensor
2. LCD ON
3. EVF ON

Compose shots at even the most difficult angles with this useful tilting 460,000 dots of resolution, LCD screen. The monitor features the monitor sunlight mode for improved viewability even under bright sunlight outdoors. Press and hold the "EVF/LCD" button at the back of the camera down for a few seconds to activate this mode.

Body structure that keeps off moisture and dust. The body features sealing around lids (for card slot, etc.) and rubber ring on the lens to prevent the entry of moisture and dust. Combined with the integrated lens that does not require replacing, the entire system delivers a high level of tightness.

For telephoto shots beyond the 26x optical zoom range, Intelligent Digital Zoom doubles your zoom to the equivalent of 52x zoom and delivers excellent sharpness and detail.

Just like choosing the ideal film for your creative direction, this easy-to-use mode lets you simulate the color and tonal qualities of color reversal film types loved by professional photographers: the true-to-scene natural look of PROVIA, the vibrant tonality and saturated colors of Velvia, and the silky soft look and beautiful skin tones of ASTIA. The X-S1 makes it simple to take photographs with distinctive Fujichrome color, a quality that only film could previously capture.

Replicating the effects of monochrome film photography, the X-S1 lets you use color filters to expand your photographic interpretation. Heighten contrast with the Ye filter and R filter. Brighten greens and deepen reds with the G filter. Just as you once selected a filter and printing paper to complement your creative vision, the X-S1 empowers expression with a choice of an array of image quality enhancement functions.

The X-S1's built-in RAW data converter lets you view and edit your results without the need for your PC. The conversion of RAW data not only takes into account exposure compensation, white balance and other in-camera image quality control settings, but also lets the user apply Film Simulation modes in the converter mode.

One press of the shutter captures 3 shots of the same scene at different exposures. AE bracketing can be set in ±1/3, ±2/3 and ±1 EV steps. Based on a single exposure, the scene is automatically reproduced as 3 images, each with a different ISO sensitivity and without changing the shutter speed and aperture, letting you capture the moment with varying degrees of brightness. Setting is possible in ±1/3, ±2/3 and ±1 EV steps.

Customize operation with smooth one-touch control during shooting, just by assigning frequently used functions to two step-saving function buttons (Fn1/Fn2). Create, save and assign custom settings to the Custom Modes (C1/C2/C3) on the Mode Dial for instant recall of user-defined settings from ISO sensitivity to white balance.

In addition to Auto White Balance, the X-S1 also offers a choice of 9 white balance presets to compensate for the color of different light sources. Users can also set a Custom White Balance using a gray card or other surface, or select the optimum Kelvin value. For precision correction of white balance, or to explore the creative effects you can achieve from filters, the X-S1 lets you fine tune white balance by adjusting R (red) - Cy (cyan) and B (blue) - Ye (yellow) in ±9 steps.

Select the broad sensitivity range of ISO100-3200 for shooting at full 12 megapixel resolution. When sensitivity is the priority, set maximum sensitivity up to ISO12800 (S size). For automatic setting of the optimum sensitivity up to ISO3200, choose AUTO. By assigning this range setting function to the Fn Button, extended sensitivity is available at a touch of a button.

Within the 49-point matrix of the auto focus area in the screen, AF accurately and swiftly recognizes the primary subject and brings it into crystal clear focus. It also lets you freely select the position of the AF frame. Using the LCD monitor, you also can change the AF frame size and pinpoint the focusing.

Create a photo album in your camera. Easily accessible and mobile, you can share images with family and friends anytime, anywhere. Installed in-camera, you can create a Photobook folder where tagged images will be stored and organized accordingly. Your Photobook can also be ordered online for print when connected to the internet, as well as when you go to stores to get your photos printed*, images can easily be sorted when tagged.

Number of effective pixels: 12.0 million pixels

Image sensor: 2/3-inch EXR CMOS with primary color filter

Storage media:

• Internal memory (approx. 26 MB)
• SD / SDHC / SDXC(UHS-I) memory card

File format:

• still image: JPEG (Exif Ver 2.3)*3, RAW (RAF format), RAW + JPEG
  (Design rule for Camera File system compliant / DPOF-compatible)
• movie: H.264 (MOV) with Stereo sound

Number of recorded pixels: 

• L : (4:3) 4000 x 3000 / (3:2) 4000 x 2664 / (16:9) 4000 x 2248 / (1:1) 2992 x 2992
• M : (4:3) 2816 x 2112 / (3:2) 2816 x 1864 / (16:9) 2816 x 1584 / (1:1) 2112 x 2112
• S : (4:3) 2048 x 1536 / (3:2) 2048 x 1360 / (16:9) 1920 x 1080 / (1:1) 1536 x 1536
• 360° Vertical 11520 x 1624 Horizontal 11520 x 1080
• 180° Vertical 5760 x 1624 Horizontal 5760 x 1080
• 120° Vertical 3840 x 1624 Horizontal 3840 x 1080

Lens:

• name: Fujinon 26x optical zoom lens
• focal length: f=6.1 - 158.6 mm, equivalent to 24 - 624 mm on a 35 mm camera
• full-aperture: F2.8 (Wide) - F5.6 (Telephoto)
• constitution: 12 groups 17 lenses (4 aspherical molded lenses, 2 ED lenses included)

Digital zoom: Intelligent digital zoom approx. 2x (1.4) (up to 52 x when combined with optical zoom)

Aperture: F2.8 - F11(Wide) F5.6 - F11(Telephoto) 1/3EV step (controlled 9-blade aperture diaphragm)

Focus distance (from lens surface): 

• Normal: Wide : Approx. 30 cm / 0.9 ft. to infinity Telephoto : Approx. 2.0 m / 6.5 ft. to infinity
• Macro: Wide : Approx. 7 cm - 3.0 m / 2.8 in. - 9.8 ft.
  Telephoto : Approx. 2.0 m - 3.5 m / 6.5 ft. - 11.5 ft.
• Super Macro: Approx. 1.0 cm - 1.0 m / 0.4 in. - 3.3 ft

Sensitivity: Auto(400) / Auto(800) / Auto(1600) / Auto(3200) / Equivalent to ISO 100 / 200 / 250 / 320 / 400 / 500 / 640 / 800 / 1000 / 1250 / 1600 / 2000 / 2500 / 3200 / 4000 / 5000 / 6400 / 12800 (Standard Output Sensitivity)
(ISO4000 / 5000 / 6400 : M mode or lower, ISO12800 : S mode)

Exposure control: TTL 256-zones metering, Multi / Spot / Average

Exposure mode: Programmed AE, Aperture Priority AE, Shutter Priority AE, Manual

Shooting modes:

• SP: Natural Light & Flash, Natural Light, Portrait, Portrait Enhancer, Dog, Cat, Landscape, Sport, Night, Night (Tripod), Fireworks, Sunset, Snow, Beach, Party, Flower, Text
• MODE DIAL: EXR, AUTO, Adv., SP, C3, C2, C1, M, A, S, P

Image stabilizer: Lens shift type

Exporsure compensation: -2.0EV - +2.0EV 1/3EV step

Shutter speed: (Auto mode) 1/4 sec. to 1/4000 sec., (All other modes) 30 sec. to 1/4000 sec.

Continuous shooting:

• TOP:
  Super High : approx. 10 fps (Size M, S)
  High : approx. 7 fps (Size L, M, S)
  Middle : approx. 5 fps (Size L, M, S)
  Low : approx. 3 fps (Size L, M, S)
  (SD memory card with a class 4 write speed (4 MB/sec.) or better is recommended.)
  (The frame rate varies depending on the shooting conditions or numbers of frames in continuous shooting.
• Others:
  Best Frame capture :
  Super High : approx. 10 fps 8 / 16 frames (Size M, S)
  High : approx. 7 fps 8 frames (Size L, M, S) / 16 frames (Size M, S)
  Middle : approx. 5 fps 8 frames (Size L, M, S) / 16 frames (Size M, S)
  Low : approx. 3 fps 8 frames (Size L, M, S) / 16 frames (Size M, S)

Auto bracketing:

• AE Bracketing : ±1/3EV, ±2/3EV, ±1EV
• Film Simulation Bracketing : PROVIA / STANDARD, Velvia / VIVID, ASTIA / SOFT
• Dynamic Range Bracketing : 100%, 200%, 400%
• ISO Sensitivity Bracketing : ±1/3EV, ±2/3EV, ±1EV

Focus:

• mode: Single AF / Continuous AF (EXR AUTO, Movie), Manual AF (One-push AF mode included)
• type: TTL contrast AF, AF assist illuminator available
• AF frame selection: Multi, Area, Tracking

White balance:

• Automatic scene recognition: Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Custom, Color temperature selection (2,500K - 10,000K)

Self-timer: 10 sec. / 2 sec. delay , Auto Release

Flash:

• Auto flash (super intelligent flash)
• Effective range : (ISO AUTO (800))
• Wide : Approx. 30 cm - 8.0 m / 0.9 ft. - 26.2 ft.
• Telephoto : Approx. 2.0 m - 4.0 m / 6.5 ft. - 13.1 ft.

Flash modes:

Red-eye removal OFF : Auto, Forced Flash, Suppressed Flash, Slow Synchro.
Red-eye removal ON : Red-eye Reduction Auto, Red-eye Reduction & Forced Flash, Suppressed Flash, Red-eye Reduction & Slow Synchro.

Hot shoe: Yes

Viewfinder:

• 0.47-inch, approx. 1440,000 dots, TFT color LCD monitor
• Approx. 100? coverage
• Diopter adjustment : -5 - +3 m-1(dpt)

LCD monitor: 3.0-inch, approx. 460,000 dots, TFT color LCD monitor, approx. 100% coverage

Movie recording: 1920 x 1080 pixels / 1280 x 720 pixels / 640 x 480 pixels (30 frames / sec.) with stereo sound. Optical zoom (manual) can be used.

Photography functions: EXR mode (EXR Auto / Resolution priority / High ISO & Low noise priority / Dynamic range priority), Face recognition, Face Detection, Auto red-eye removal, Film simulation, Framing guideline, Frame No. memory, Histogram display, Advanced mode (Motion panorama360, Pro focus, Pro low light), High Speed Movie (70 / 120 / 200 frames/sec.), Electronic level, One-touch RAW, Advanced Anti Blur, Focus check, Color space

Playback functions: Face Detection, Auto red-eye removal, Multi-frame playback (with micro thumbnail), Protect, Crop, Resize, Slide show, Image rotate, Voice memo, Histogram display, Exposure warning, Photobook assist, Image search, Favorites, Mark for upload, Panorama, Erase selected frames, RAW conversing

Other functions: PictBridge, Exif Print, 35 Languages, Time difference, Silent mode, Sutter sound

Terminal:

• Video output: NTSC / PAL selectable with Monaural sound
• Digital interface: USB 2.0 High-Speed
• HDMI output: HDMI Mini connector
• External microphone: ø3.5 Mini with Stereo sound

Power supply: NP-95 Li-ion battery (included)

Dimensions: 135(W) x 107(H) x 149(D) mm / 5.3(W) x 4.2(H) x 5.9(D) in.

Weight:

• Approx. 945 g / 33.3 oz. (including battery and memory card)
• Approx. 905 g / 31.9 oz. (excluding battery and memory card)

Operating Temperature: 0°C - 40°C

Operating Humidity: 10% - 80% (no condensation)

Guide to the number of available frames for battery operation:

• approx. 460 frames
• approx. 500 frames (using EVF)