Last Updated (24 May’11):
Sigma SD1 is a 15.40 MP Digital camera features ISO 100-6400, Dual TRUE II image processing engine, 11 point twin cross sensor, Magnesium body, Weather-resistant design, and Large, highly visible 3.0” TFT colour LCD Monitor. The camera measures 5.7 x 4.5 x 3.1 in. (146 x 114 x 80 mm) and weight 24.7 oz (700 g).
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Sigma SD1 Features
The Sigma Corporation is pleased to announce the new SIGMA SD1 Digital SLR Camera,
incorporating a 46 megapixel (4,800×3,200×3 layers) 24×16mm APS-C X3 direct image sensor.
The SIGMA SD1 is Sigma’s flagship digital SLR model, adopting a lightweight yet solid magnesium
alloy for its body and O-ring sealing connections to make a weather-resistant design throughout for
use in harsh conditions.
The SIGMA SD1 incorporates a 24×16mm APS-C X3 direct image sensor and dual “TRUE (Three-layer
Responsive Ultimate Engine) II ”image processing engines. The combination of the 46 megapixel
(4,800×3,200×3 layers) sensor and dual TRUE II processing engines ensure the high resolution images are processed quickly with high definition and a smooth and subtle graduation of color.
The SD1 is SIGMA’s latest digital SLR camera which meets high requirements of professional and
enthusiast photographers for all types of photography.
46 megapixel 24×16mm APS-C X3 Full-color image sensor
The 46 megapixel (4,800×3,200×3 layers) 24×16mm APS-C X3 direct image sensor featured in the
Sigma SD1 captures all primary RGB colors at each and every pixel location, ensuring the capture of
full and complete color. Using three silicon-embedded layers of photo detectors, stacked vertically to
take advantage of silicon’s ability to absorb red, green and blue light at different respective depths, it
efficiently reproduces color more accurately, and offers sharper resolution, pixel for pixel, than any
conventional image sensor. Since color moiré is not generated, the use of a low-pass filter is not
required, meaning light and color, generated by the 46 megapixel APS-C X3 direct image sensor is
captured with a three-dimensional feel.
Dual TRUE II image processing engine
The SD1 incorporates a dual “TRUE (Three-layer Responsive Ultimate Engine) II ” image processing
engine which improves the processing speed and overall quality of the final image. The unique
image-processing algorithm provides high resolution power and reproduces high definition images
with richly graduated tones.
The SD1 adopts the TYPE I CF Card. This camera is compatible with the UDMA enabling fast
processing of large amounts of data.
* It is not possible to use Microdrives and TYPE II CF cards.
11 point twin cross sensor
The autofocus system features an 11 point twin cross sensor. The shifted twin cross type sensor
improves AF accuracy.
The Sigma SD1 adopts a lightweight yet solid magnesium alloy body designed to withstand rough use
and shocks in harsh conditions.
Buttons and connections benefit from O-ring sealing connections to prevent dust and water getting
inside the camera body.
Large, highly visible 3.0” TFT color LCD Monitor
The SD1 camera features a 3.0 inch TFT color monitor. This 460,000 pixel resolution LCD monitor
benefits from a wide viewing angle, making it easy to check focusing and composition.
The SD1 can be used with over 40 Sigma lenses such as ultra-wide, ultra-telephoto, macro and
fisheyes which adopt the latest technology such as the FLD (“F” Low Dispersion) glass elements, which
have the performance equal to fluorite glass, SLD glass, Aspherical lenses, Sigma’s own unique Optical
Stabilizer function, Hyper Sonic Motor and Sigma’s Super Multi Layer Coating. They meet the various
and demanding requirements of all types of photographers.
Sigma SD1 Reviews
Sigma SD1 Sample Photos
Sigma SD1 User Manual (PDF)
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See also: Digital Camera | Sigma