SIGMA dp1 Quattro
Based on our rigorous examination of lens options to match the new Foveon X3 Quattro direct image sensor, we’ve incorporated 19mm F2.8 (equivalent to a 28mm lens on a 35mm SLR).
The world’s only image capture system to use vertical color separation technology
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. The Foveon direct image sensor captures color vertically, recording hue, value, and chroma accurately and completely for each pixel, enabling the expression of rich gradation and tone. Moreover, there is no low-pass filter needed to correct the interference caused by a color filter array, 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 with light and color information for every single pixel.
Newly developed Foveon X3 Quattro direct image sensor
The SIGMA dp1 Quattro incorporates a newly developed Foveon X3 direct image sensor (generation name: “Quattro”). The new sensor structure features a pixel ratio of 1:1:4 from the bottom, middle to top layer. The Foveon X3 Quattro direct image sensor is able to detect a broad range of light wavelengths. While the top layer captures both brightness and color information, the middle and bottom layers with their larger surface area capture color information only. During the image data processing stage, the brightness data captured in the top layer is applied to the top, middle, and bottom layers, resulting in brightness and color data for each individual pixel. Retaining the principle of the three-layer structure where colors are divided vertically, by applying the brightness data captured in the top layer to the layers below, high resolution and high-speed for broad data processing required are achieved.
Equivalent to 39 megapixel high resolution
A conventional color sensor captures resolution information through green megapixels, which means the information it can contain is only 50% of the whole pixels. On the other hand, the new Quattro sensor captures resolution information with the whole top layer. It holds twice as much resolution compared to conventional color sensors. 19.6 megapixel resolution information of the top layer achieves high resolution equivalent to 39 megapixels.
TRUE III image processing engine
The new dp series cameras feature the newly developed TRUE (Three-layer Responsive Ultimate Engine) III. This image processing engine has evolved in pace with our Foveon direct image sensor and incorporates all of the image processing expertise we have developed over the years. Thanks to new refinements, it is the ideal engine for processing the rich and complex image data produced by the new-generation Foveon X3 Quattro direct image sensor. Our proprietary algorithm makes possible ultrafast processing of an immense volume of image data without any deterioration of the final images. The result is high-definition, 3D-like photographs with outstandingly rich color detail.
High performance 19mm F2.8 lens
Based on our rigorous examination of lens options to match the new Foveon X3 Quattro direct image sensor, we’ve incorporated 19mm F2.8 (equivalent to a 28mm lens on a 35mm SLR) that has a FLD (“F” Low Dispersion) glass, which is equivalent to fluorite in its characteristics, and two glass mold aspherical lenses so as to minimize every type of optical aberration. The superior telecentric optical design improves image quality throughout the frame and maximizes the sensor’s ability by passing on information about subjects to the sensor.
A solid and lightweight magnesium alloy is incorporated to the part of exterior. With rigidity and strength, the body is highly reliable and superior as a tool for photography..
Quick Set Menu
The Quick Set (QS) Menu which consists of the 8 most commonly used functions such as ISO and White Balance can be easily displayed by pressing the QS button. Using the Selector, the Front Dial and the Rear Dial, change of the settings can be made in no time. It allows photographers to change the menu content and the order depending on their preferences.
The SIGMA dp1 Quattro features “9 point select mode” which can select the desires focusing point from 9 different frames and “Free move mode” which can move the desired point as you like. “Face Detection AF” prioritizes focus on the face of the subject when detected by the sensor. Moreover “AF Limit Mode” which adjusts the range of auto focusing and “Shutter Priority AF” which offers faster focus adjustment by stopping the live view can be selected to increase the speed of the auto focusing. By selecting “AF+MF mode”, the focus can be adjusted manually after verifying the AF by rotating the focus ring. The SIGMA dp1 Quattro has an AF auxiliary light inside, which enables auto focus shooting in a low light environment.
Large, highly visible 3.0” TFT color LCD Monitor
The SIGMA dp1 Quattro features a 3.0 inch TFT color monitor which ensures great visibility even outside in the daytime. This approximately 920,000 pixel resolution LCD monitor benefits from a wide viewing angle, making it easy to capture detail and to check focusing and composition.
The SIGMA dp1 Quattro is equipped with a hot shoe, allowing use of the dedicated view finder VF-31 (optional) and external flashgun EF-140 S (optional) as well as SIGMA electronic flashguns for SD series such as EF-610 DG Super (optional) and EF-610 DG ST (optional).
Manual Focus is available for use when autofocus or focus lock is not desired. It is possible to use the focus ring for focusing just like an SLR camera. It is also possible to magnify the display to ensure precise focusing.
14-bit RAW data
RAW data records information of light captured by the Quattro sensor. 14-bit (16384 tones) signal processing is incorporated when the analog output signal is transformed to a digital signal, achieving photography data with excellent tones and smooth gradation of subjects. RAW data incorporates lossless compression that prevents data from degradation. By processing images using SIGMA Photo Pro, it is possible to create images with natural balance like no other.
SUPER HIGH size with 39 megapixel high resolution
The SIGMA dp1 Quattro has High size and Low size to select from depending on the purpose of the photography. High size gets the best performance out of the image sensor both with RAW data and JPEG and Low size focuses more on the number of images that can be recorded. With both of the sizes, simultaneous recording of RAW and JPEG is possible. Moreover, for JPEG, SUPER HIGH that is suitable for larger prints can be selected to accommodate photographers' various needs.
Capable of 7 frames continuous shooting
A large volume buffer memory enables the camera to capture up to 7 RAW images per sequence in continuous shooting mode in High size. Using high speed data transfer and processing, the SIGMA dp1 Quattro features a continuous shooting speed of up to 3.5 frames per second. In addition, depending on the situation, it is possible to capture up to 4.5 frames per second and up to 14 images per sequence in continuous shooting mode in Low size..
The aspect ratio of 3:2 is set as standard however 5 different aspect ratios are available including 1:1 and 21:9, similar to those of wide screens used in cinemas, depending on your photography needs. Images recorded as RAW format can be changed to different ratios in SIGMA Photo Pro.
An electric level that is useful in determining composition can be displayed. The camera’s horizontal and vertical directions are displayed while shooting.
10 White Balance options
In addition to the Auto (Default) option that allows the camera to automatically determine the appropriate white balance adjustments, Auto (Lighting Source Priority) option is incorporated. This option allows the camera to adjust white balance while valuing the color and atmosphere of light source. 10 options are available and it is also possible to adjust white balance based on the image incorporated, and to set the amount of color temperature (Kelvin). Moreover, each white balance mode can be fine-tuned, enabling detailed correction of white balance and creative work with a filter effect.
More preset Color Mode options
Color Mode can adjust rendering and contrast to best suit each photography scene. With the SIGMA dp1 Quattro, 4 preset Color Modes are added including “Cinema”, which reduces saturation and emphasizes shadows to recreate an image like in a cinema and “Sunset Red” which emphasizes red color rendering, and expresses the scenes, such as sunsets, more impressively. True artistic expression has become easier than ever.
Advanced Monochrome options
With Filtering Effect contrast can be changed as if the images are taken using a color filter for black and white photography, and with Toning Effect color tones can be adjusted according to preferences such as WARM, COLD and SEPIA, so that photographers can create more impressive image of subjects.
Blown-out highlights caused by overexposure can be corrected, based on the gradation information obtained through the arrangement of pixels on the sensor, to minimize loss of detail. In addition, by utilizing that gradation information, it is possible to expand the dynamic range while processing RAW files.
ISO sensitivity can be set from ISO 100 to ISO 6400. By setting the range to 1/3 EV steps from the default 1 EV steps, it is possible to set the sensitivity to ISO 125 or ISO 160. ISO AUTO, where the camera automatically sets the ISO sensitivity according to brightness of the shooting environment, enables you to set the upper limit and lower limit depending on your shooting style.
Exclusive Sigma Photo Pro software
SIGMA Photo Pro software makes possible to process RAW data instinctively. With an easy operation like moving sliders left and right while looking at the photographed image, your desired expression can be achieved. By changing modes, this software helps produce the stunning tones and gradation for which the Foveon X3 Quattro sensor is famed. In addition, the software also makes possible monochrome photographs of impressive depth.
The SIGMA dp1 Quattro adopts the SD Card (SD, SDHC, SDXC compatible) which is compact and easy to carry. Moreover, since it is compatible with SDHC and SDXC’s UHS-I standard, large volume data can also be recorded with high speed.
Dedicated lens hood
The dedicated bayonet lens hood LH4-01 (optional) can be attached to block out extraneous light.
Dedicated Cable Release
The dedicated cable release (CR-31) (optional) allows release of the shutter without touching the camera by connecting it to the camera’s USB terminal. It is useful when releasing the shutter from a distance or with a slow shutter speed, as well as to prevent image blur.
|Image Sensor||Foveon X3 Direct Image Sensor (CMOS)|
|Image Sensor Size||23.5×15.7mm|
|Color Photo Detectors||Total Pixels: Approx.33MP|
|Effective Pixels: Approx.29MP T (Top)：5,424×3,616 / M (Middle)：2,712×1,808 / B (Bottom)：2,712×1,808|
|Aspect Ratio||21:9, 16:9, 3:2, 4:3, 1:1|
|35mm Equivalent Focal Length||Approx.28mm|
|Lens F number||F2.8~F16|
|Number of Diaphragm Blades||9 Blades|
|Lens Construction||8 Elements in 8 Groups|
|Shooting Range||20cm~∞, LIMIT Mode (It is possible to choose Macro, Portrait and Scenery.)|
|Maximum Magnification Shooting||1:8.3|
|Storage Media||SD Card, SDHC Card, SDXC Card|
|File Format||Lossless compression RAW data (14-bit), JPEG (Exif2.3), RAW+JPEG|
|JPEG Image Quality||FINE、NORMAL、BASIC|
|ISO Sensitivity||ISO100~ISO6400 (1/3 steps for appropriate sensitivity), AUTO: High limit, low limit setting is possible between ISO100~ISO6400. When using with flash, it changes depending on the low limit setting.|
|White Balance||10 types (Auto, Auto (Lighting Source Priority), Daylight, Shade, Overcast, Incandescent, Fluorescent, Color Temperature, Flash, Custom)|
|Color Mode||11 types (Standard, Vivid, Neutral, Portrait, Landscape, Cinema, Sunset Red, Forest Green, FOV Classic Blue, FOV Classic Yellow, Monochrome)|
|Auto Focus Type||Contrast Detection Type|
|AF Point||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|
|Focus Lock||Shutter release halfway-down position (AF lock can be done by AE lock button from menu setting)|
|Manual Focus||Focus Ring Type|
|Metering Systems||Evaluative Metering, Center-Weighted Average Metering, Spot Metering|
|Exposure Control System||(P) Program AE (Program Shift is possible), (S) Shutter Speed Priority AE, (A) Aperture Priority AE, (M) Manual|
|Exposure Compensation||±3EV (1/3 stop increments)|
|AE Lock||AE lock button|
|Auto Bracketing||Appropriate, under, over; 1/3EV steps up to ±3EV for appropriate exposure|
|Shutter Speed||1/2000* - 30sec. (*Depending on the aperture value, shutter speed changes)|
|Drive Modes||Single, Continuous, Self Timer (2sec. /10sec.) Interval timer|
|LCD Monitor Type||TFT color LCD monitor|
|Monitor Size||3.0 inches|
|LCD Pixels||Approx. 920,000 Pixels|
|LCD Monitor Language||English/ Japanese/ German/ French/ Spanish/Italian/ Chinese (Simplified)/ Chinese (Traditional)/ Korean/ Russian/ Nederlands/ Polski/ Português/ Dansk/ Svenska/ Norsk/ Suomi|
|Interfaces||USB (USB2.0), Video Out (NTSC/PAL), Audio Out (Monaural)|
|Power||Li-ion Battery Pack BP-51, Battery Charger BC-51, AC Adapter SAC-6 (with DC Connector CN-21) (Optional)|
|Battery Life||Approx. 200 (+25℃)|
|Dimensions||161.4mm/6.4"(W), 67mm/2.6"(H), 87.1mm/3.4"(D)|
|Weight||425g/15oz (without battery and memory card)|
|Accessories||Lens Cap (on the camera) / Hot shoe cover (on the camera) / Strap / Li-ion Battery BP-51 (2 pieces) / Battery Charger BC-51 / Battery Charger Cable / USB Cable / Instruction Manual|
* The appearance and specifications are subject to change without notice.
SIGMA dp1 Quattro
Barcode No : 00-85126-930585
In The News
"Like earlier Foveon models there's certainly something very appealing to the images from the DP1 Quattro: colours and tones are vibrant, lively and sophisticated without ever looking over-worked or artificial. Details are crisp and well-resolved. The overall style looks different to any other camera in a refreshing and desirable way. The image quality is the highlight of the DP1 Quattro with its appealing colours and tones, and crisp details. Indeed I found myself surprisingly won-over by the DP1 Quattro during testing, despite its many limitations and lack of modern frills".
"…the images that the DP1 Quattro produces are simply outstanding, by far the best images that we've seen from a mere compact camera and even rivalling a high-end DSLR with an equivalent and expensive prime lens. The Foveon X3 Quattro sensor… …and the prime 19mm lens deliver stunningly sharp, high-resolution images that are better even than the previous DP1 Merrill. Chromatic aberrations are once again non-existent on the DP1 Quattro, testament to the excellent prime lens, which is also the reason for the almost complete lack of pincushion or barrel distortion, and the fast maximum aperture of f/2.8 is very welcome. …the 3-layer Foveon technology really does deliver a different look to cameras with Bayer sensors, a look that we like a lot."
|British Journal of Photography
The striking design is unfettered by rose-tinted retro constraints and certainly demands attention from photo kit enthusiasts. It’s surprisingly comfortable to use, with a natural resting place for the thumb. Sharpness and contrast are exceptional – as expected. Once the results have been seen, going back to bayer could be a very disappointing experience.
Please click on the above link to take a look at this selection of photographs, along with the photographers' commentaries. All the images were taken by professional photographers using the SIGMA dp Quattro series compact digital cameras incorporating the full color FOVEON X3 direct image sensor.