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The SIGMA sd Quattro incorporates an APS-C size sensor for outstanding medium format level image quality, while the SIGMA sd Quattro H features a new APS-H size sensor for 51 megapixel-equivalent ultra-high image quality.
The world’s only image capture system to use vertical color separation technology
The new sensor structure features a ratio 1:1:4 for the number of red, green, and blue megapixels, respectively.
By using two separate TRUE III engines, the camera is able to process data from the Foveon X3 Quattro direct image sensor at extremely high speed.
Speed versus focusing performance: two AF detection methods available for smoother and more accurate autofocusing.
SIGMA Capture Pro - the dedicated software for remote operation from your computer
New SFD mode for lower-noise, higher-definition images
When Low size is used, the SIGMA sd Quattro offers a continuous shooting of up to 24 images
JPEG files in S-HI size (SIGMA sd Quattro: 39 megapixels; SIGMA sd Quattro H: 51 megapixels)
The high-resolution 2.36 mega-dots electronic viewfinder features near-100% viewfinder coverage and a 1.10 magnification ratio (sd Quatto H: 0.96x).
This function puts a colored outline (white, black, red, or yellow) around the subject in the viewfinder for instant confirmation of the person or object currently in focus.
In addition to the 1.62 mega-dots 3.0 inch TFT LCD main monitor, the rear of the camera features a sub-monitor that displays the number of remaining shots on the SD card, shutter speed, aperture value, ISO level, and more.
Intuitive user interface helps user focus attention on creative work
The SIGMA sd Quattro H features a Foveon X3 direct image sensor (generation name: Quattro) in an all-new bigger APS-H size. It has all the image quality of the Foveon X3 direct image sensor with even more resolution. In fact, the SIGMA sd Quattro H offers 51-megapixel-equivalent resolution—the highest among sensor sizes smaller than full-frame. This is the camera for those looking for even higher resolution form SIGMA's direct image technology.
In developing any product, SIGMA always has a primary objective in mind: fundamental performance that gives everyone the opportunity to take the perfect photograph. Offering breathtaking resolution, rich gradations and colors, and exceptional realism, the Foveon X3 Quattro direct image sensor is a symbol of this never-ending pursuit of excellence. It delivers image quality so distinctively intense that even the temperature, humidity, and scent of a scene seem to impress themselves upon the viewer.
Presenting the ultimate digital camera experience, the new SIGMA sd Quattro series leverages the image quality of the Foveon X3 Quattro direct image sensor to build a complete system compatible with all SIGMA GLOBAL VISION high-performance interchangeable lenses. The sd Quattro series allows photographers to express themselves with even more freedom and precision.
Believing that the lens is the key to the photograph, SIGMA has created a new camera for the true photographic artist that leverages the power of high-quality lenses. Test its performance with your own hands and eyes—and be amazed.
The SIGMA GLOBAL VISION series of high-performances lenses comprises three distinct lines and concepts: Contemporary, Art, and Sports. SIGMA has developed each of the lenses in these three lines using the Foveon X3 direct image sensor to ensure their world-class optical performance. Offering the outstanding expression that photographers demand, the SIGMA sd Quattro series is a complete and powerful system compatible with these fine lenses.
With its three-layer structure, the Foveon X3 Quattro direct image sensor captures all of the information carried by visible light. This film-like capture system offers rich gradations and color and truly distinctive image quality. Optimized to match the enhanced resolution and other characteristics of the image data, the image processing system of the new SIGMA sd Quattro leverages the outstanding fundamental functions of the camera while taking overall image quality to the next level.
The SIGMA sd Quattro incorporates an APS-C size sensor for outstanding medium format level image quality, while the SIGMA sd Quattro H features a new APS-H size sensor for 51 megapixel-equivalent ultra-high image quality.
Other cameras typically use a single-layer photo sensor covered by a Bayer filter mosaic, which comprises 50% green, 25% blue, and 25% red squares. In contrast, the Foveon X3 Quattro direct image sensor uses no low-pass filter and is able to capture 100% of the data for blue, green, and red in each of its three layers. Due to this unique structure, the Foveon X3 Quattro direct image sensor can generate up to twice the resolution data of sensors using a Bayer filter. The SIGMA sd Quattro has an APS-C-size sensor with 19.6 megapixels in its top layer, giving it an equivalent total of approximately 39 megapixels and the outstanding image quality expected of a medium format camera. The SIGMA sd Quattro H features a newly developed APS-H size sensor (26.7 x 17.9mm) with 25.5 megapixels in its top layer for an equivalent total of approximately 51 megapixels. This larger sensor takes Foveon image quality to the next level, delivering more detailed images than ever before.
The world’s only image capture system to use vertical color separation technology.
Starting with the very first digital camera, Sigma have featured the Foveon direct image sensor, which offers radically better image quality than any other sensor available. Leveraging the light absorption characteristics of silicon, the sensor comprises three layers of photodiodes, each at a different depth within the silicon and each corresponding to a different RGB color. Since it is the only sensor to use this superior vertical color separation technology, it is also the world’s only direct image sensor.
Almost all other image sensors are mosaic sensors, which use an array of RGB color filters in a single horizontal plane to capture color information. Each pixel is assigned only one of the three colors and cannot capture all three colors at once. In contrast, the Foveon direct image sensor captures color vertically, recording hue, value, and chroma accurately and completely for each pixel.
In the Foveon direct image sensor, there are no color filters which would cae a loss of information transmitted by light. Moreover, there is no low-pass filter needed to correct the interference caused by a color filter array. Finally, unlike the data from other sensors, which requires artificial interpolation to “fill in” missing colors, the data from the Foveon direct image sensor is complete for every single pixel and requires no interpolation. The unique technological principle of this sensor produces consistently outstanding image quality.
Now featuring 39 megapixel-equivalent ultrahigh resolution.
Capturing the information transmitted by light vertically instead of horizontally, the full-color image capture system of the Foveon direct image sensor is the only one of its kind in the world. This system makes possible the sensor’s full-bodied image quality, which is characterized by rich tone and gradation and texture that one can almost touch.
The newly developed Foveon X3 Quattro is the latest generation of this unique sensor. While retaining the distinctive characteristics of its predecessors, it offers an even higher level of image quality. Resolution is 30% higher, and its noise characteristics are further enhanced.
The new sensor structure features a ratio 1:1:4 for the number of red, green, and blue megapixels, respectively. The top layer captures luminance and color information, while the bottom two layers capture color information only. This unique structure prevents the deterioration of the signal-to-noise ratio that is typically associated with an ultrahigh megapixel count. At the same time, it makes possible high-speed data processing required for faithful color replication. Able to maintain the same exacting standard of image quality while increasing resolution and enhancing noise characteristics, this 1:1:4 solution was the inspiration for the name of the current generation of Foveon sensor: “Quattro.”
TRUE (Three-layer Responsive Ultimate Engine) III is the dedicated image processing engine for the Foveon X3 Quattro direct image sensor. SIGMA’s original algorithm processes data without loss of color detail or other image degeneration to deliver extremely detailed image expression with a noticeable 3D pop. In addition, by using two separate TRUE III engines, the camera is able to process data from the Foveon X3 Quattro direct image sensor at extremely high speed.
Phase detection AF is superior for speed performance, while contract detection AF is superior for focusing accuracy. Combining these two methods in a single system delivers AF that is fast and precise at the same time. In addition, this approach to autofocus takes full advantage of the characteristics of high-performance lenses. The Single AF mode is optimal for everyday photography, while the Continuous AF mode is optimal for focusing on a moving object. In the latter mode, pressing the shutter button halfway causes autofocus to operate continuously, while Movement Prediction AF operates at the same time for more accurate autofocusing. A variety of other AF modes are also available. 9-Point Selection AF mode allows the user to select among nine focus frames. Free Movement AF mode allows the user to select the focus frame with high precision. Face Detection AF mode detects human faces and prioritizes focusing on them. The AF assist light incorporated in the camera body makes possible the use of AF even in low-light conditions.
SIGMA Photo Pro makes possible intuitive processing of RAW data, leveraging the full power of the information captured by the Foveon X3 Quattro direct image sensor. Operation is easy: the user simply adjusts horizontal sliders while viewing the photographs to create images that perfectly match his or her vision. In addition, the software turns X3I files created using the camera’s Super-Fine Detail function into high-resolution, noiseless images with outstanding dynamic range. Various modes allow the user to take full advantage of the image sensor’s fine tones and gradations and create monochrome images of impressive depth. Available for RAW data (X3F file) from the sd Quattro series that has been taken at ISO 800 or higher, the binning function minimizes noise while maintaining rich color rendering.
SIGMA Capture Pro - the dedicated software for remote operation from your computer.
SIGMA Capture Pro allows the user to control and capture photographs with the camera via a personal computer. After connecting the camera to the computer with a USB cable, the user can take photos and adjust the aperture value, shutter speed, and other settings. The photographs taken using the software may be downloaded to the camera’s SD card, to the computer, or both at the same time. The software also allows the user to continuously shoot a set number of photographs. While connected to the computer, the camera may still be operated and used to take photographs manually.
New SFD mode for lower-noise, higher-definition images. The new Super-Fine Detail (SFD) exposure mode brings out the full performance of the Foveon X3 Quattro direct image sensor. One push of the shutter generates seven different exposures, creating RAW data in the X3I file format. Using this data with the SIGMA Photo Pro software package, the photographer can create noiseless images with an extensive dynamic range. With this new mode, the more detailed imaging potential of the Foveon X3 Quattro direct image sensor is fully leveraged. From each X3I file, individual X3F files may also be generated. The value of SFD exposure mode is especially apparent in studio photography.
Note: To prevent camera shake, SIGMA recommends the use of a tripod.
The DDR III high-speed, high-volume memory is approximately twice the capacity of that of the SIGMA dp Quattro. This allows the SIGMA sd Quattro to capture up to 12RAW images (X3F files) in High size during continuous shooting (SIGMA sd Quattro H: up to 8 images). As a further option, when Low size is used, the SIGMA sd Quattro offers a continuous shooting of up to 24 images (SIGMA sd Quattro H: up to 16 images).
An sd Quattro series camera provides a feeling of solidity and superior usability when you take it in both hands to compose and shoot. Each is developed to have just the right weight and shape for portability and to offer better expandability as a complete system. Moreover, each features an ergonomic design to support an intuitive photographic experience.
A variety of file sizes is available to accommodate a wide range of user needs. Using High-size files brings out the best performance from the image sensor, while using Low-size files increases the number of shots that can be stored in memory. In both of these file sizes, the camera can simultaneously create RAW and JPEG data. In addition, the camera can create JPEG files in S-HI size (SIGMA sd Quattro: 39 megapixels; SIGMA sd Quattro H: 51 megapixels), appropriate for large prints, as well as in S-Lo size, which is ideal for online sharing.
The high-resolution 2.36 mega-dots electronic viewfinder features near-100% viewfinder coverage and a 1.10 magnification ratio (sd Quatto H: 0.96x). The viewfinder incorporates three lenses with the outermost lens specially coated to ensure a clear field of view. Using a switch next to the viewfinder, the user can toggle between displaying the image in the viewfinder and the monitor. In AUTO mode, the camera automatically switches to the viewfinder display when the user is looking through it and to the monitor when he or she is not. This mode allows seamless use of the viewfinder to take photographs and use of the monitor to access settings and confirm results. For extra convenience, many functions of the monitor are available via the electronic viewfinder itself, such as setting values, grid lines, electronic level, zoom, focus peaking and more.
In addition to the 1.62 mega-dots 3.0 inch TFT LCD main monitor, the rear of the camera features a sub-monitor that displays the number of remaining shots on the SD card, shutter speed, aperture value, ISO level, and more. This extra monitor makes it easy to watch the live view and confirm key information at the same time. A sheet of special material lies between the two LCDs and the protective glass that covers them. This sheet prevents air pockets from forming and minimizes reflections, ensuring excellent display visibility in sunlight.
Building on the success of previous SIGMA user interfaces, the new UI is more intuitive than ever. Located next to the shutter button, the Quick Set button provides instant access to the Quick Set Menu, which allows the user to quickly adjust commonly used settings while continuing to look through the viewfinder. Located on the top of the body, the LOCK switch prevents the accidental pressing of buttons, helping keep the user’s attention on the creative work. The buttons that are locked with this switch may also be customized by the user. Located on the rear of the camera near the selector are several controls for commonly used functions. Easily accessed with the thumb of the right hand, they include the menu button, focus frame button, and AEL/AF button with lever.
In addition to SIGMA’s original RAW format (X3F), DNG (Digital Negative) format is available.DNG is the RAW image data that is developed by Adobe Systems Incorporated. DNG file makes it possible to develop images on other softwares, which gives more choices of expression.
The Sigma sd Quattro H incorporates an APS-H sized image sensor, and it automatically switches to DC Crop Mode, when DC lenses are attached. Also, it is possible to select On/Off of the DC Crop Mode manually. When a DG lens is mounted and the DC Crop Mode [On] is selected, the coverage of the LCD monitor and the view finder automatically becomes within APS-C size, which makes it easy determining the composition.
* If [On] is selected, the angle of view will be equivalent to 1.5 times longer than the focal length of the lens and the number of pixels to be recorded will be smaller.
Interchangeable Lens SLR Type Digital Camera
SIGMA SA mount interchangeable lenses.*Some AF limitation on some lenses may exist.
SIGMA SA bayonet mount
Equivalent to approx. 1.3 times the focal length of the lens (on 35mm cameras)
Foveon X3 direct image sensor(CMOS)
26.7×17.9mm (1.0in. ×0.7in. )
Effective Pixels: Approx. 38.6MP T(Top): 6,200×4,152 / M(Middle): 3,100×2,076 / B(Bottom): 3,100×2,076Total Pixels: Approx. 44.7MP
SD Card, SDHC Card, SDXC Card, Eye-Fi Card
Lossless compression RAW data (14-bit), DNG (No compression RAW Data 12-bit), JPEG (Exif2.3), RAW+JPEG
FINE, NORMAL, BASIC
11 types ( Standard, Vivid, Neutral, Portrait, Landscape, Monochrome, Cinema*, Sunset Red*, Forest Green*, FOV Classic Blue*, FOV Classic Yellow* )**It is not possible to select the mode when it is set as DNG.
DC Crop Mode [OFF]
RAW - X3F
HIGH T:6,192×4,128 / M:3,096×2,064 / B:3,096×2,064LOW T:3,088×2,056 / M:3,088×2,056 / B:3,088×2,056
RAW - DNG[3:2]
HIGH 6,192×4,128LOW 3,088×2,056
S-HI 8,768×3,752HIGH 6,192×2,648LOW 3,088×1,320S-LO 1,920×816
S-HI 8,768×4,928HIGH 6,192×3,480LOW 3,088×1,736S-LO 1,920×1,080
S-HI 8,768×5,840HIGH 6,192×4,128LOW 3,088×2,056S-LO 1,920×1,280
S-HI 7,792×5,840HIGH 5,504×4,128LOW 2,736×2,056S-LO 1,696×1,280
S-HI 7,296×5,840HIGH 5,152×4,128LOW 2,560×2,056S-LO 1,584×1,280
S-H I5,840×5,840HIGH 4,128×4,128LOW 2,048×2,048S-LO 1,280×1,280
DC Crop Mode [ON]
HIGH T:5,424×3,616 / M:2,712×1,808 / B:2,712×1,808LOW T:2,704×1,808 / M:2,704×1,808 / B:2,704×1,808
HIGH 5,424×3,616LOW 2,704×1,808
S-HI 7,680×3,296HIGH 5,424×2,328LOW 2,704×1,160S-LO 1,920×816
S-HI 7,680×4,320HIGH 5,424×3,048LOW 2,704×1,520S-LO 1,920×1,080
S-HI 7,680×5,120HIGH 5,424×3,616LOW 2,704×1,808S-LO 1,920×1,280
S-HI 6,816×5,120HIGH 4,816×3,616LOW 2,400×1,808S-LO 1,696×1,280
S-HI 6,352×5,120HIGH 4,480×3,616LOW 2,224×1,808S-LO 1,584×1,280
S-H I5,120×5,120HIGH 3,616×3,616LOW 1,808×1,808S-LO 1,280×1,280
12 types ( Auto, Auto (Lighting Source Priority), Daylight, Shade, Overcast, Incandescent, Fluorescent, Color Temperature, Flash, Custom 1, Custom 2, Custom 3 )
Electronic viewfinder (approx. 2,360,000 dots color LCD monitor)
1.10x (-1m-1, 50mm F1.4 at infinity)
approx. 21mm (–1m-1)
approx. -4m-1 to +2m-1
Phase difference detection system + Contrast detection system
9 points select mode, Free move mode (It is possible to change the size of Focus Frame to Spot, Regular and Large), Face Detection AF Mode
EV -1~EV 18 (ISO100 F1.4)
Single AF, Continuous AF (with AF motion prediction function), Manual
AEL/AF lock button is pressed or shutter release button is pressed halfway
Evaluative Metering, Spot Metering, Center-Weighted Average Metering
EV 0~EV 17 (50mm F1.4 ISO100)
(P) Program AE (Program Shift is possible), (S) Shutter Speed Priority AE, (A) Aperture Priority AE, (M) Manual
±5 EV （in 1/3 stop increments）
Number of shots: 3, or 5 (Appropriate, under, over; 1/3EV steps up to ±3EV for appropriate exposure)
Electronically Controlled Focal Plane Shutter
1/4000 - 30 sec., Bulb (With Extended Mode : Max. 2 min.)
Hot shoe (contact X synchronization at 1/180 sec. or less, with dedicated flash linking contact)
TFT color LCD monitor
Approx. 1,620,000 dots
Single frame display, 9 frames multi display, Zoom, Slide Show
English / Japanese / German / French / Spanish / Italian / Simplified Chinese / Traditional Chinese / Korean / Russian / Dutch / Polish / Portuguese / Danish / Swedish / Norwegian / Finnish
USB (USB3.0, micro B), HDMI (Type C mini-pin HDMI connector), Remote
Li-ion Battery BP-61, Battery Charger BC-61, AC adapter SAC-7 (optional) [DC connector CN-31, AC cable (supplied)]
147mm/5.79″(W) × 95.1mm /3.74″(H) × 90.8mm/3.57″(D)
625g / 22oz. (without battery and card)
0 - +40℃
The appearance and specifications are subject to change without a notice.
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