Sigma SD9

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Sigma SD 9
Sigma SD9 front.jpg
Front of the SD9 with a 28-200mm lens
TypeDigital single-lens reflex
LensInterchangeable (Sigma SA mount)
Sensor20.7 mm × 13.8 mm Foveon X3 sensor
Maximum resolution2268 × 1512 × 3 (10.3 million effective pixels, 3.43 megapixel output image size)
ASA/ISO range100–400 in 1 EV steps
StorageCompactFlash(CF) (Type I or Type II) and Microdrive(MD)
Focus modesOne-shot, Continuous, Manual
Focus areas1 point
Exposure modesProgrammed, shutter-priority, aperture priority, manual
Exposure meteringTTL, full aperture, zones
Metering modes8-segment evaluative, center area (about 7.5%), Center-weighted average
Flashnone, sync at 1/180 second
Shutterelectronic focal-plane
Shutter speed range30 s to 1/6000 s
Continuous shootingup to 2.5 frames per second
ViewfinderOptical, pentaprism
Image processing
Custom WB6 presets, auto, and custom
Rear LCD monitor1.8-inch (45 mm), 130,000 pixels
Battery4xAA NiMH or 2xCR-V3
Weight785 g (body only)
Back of the SD9

The Sigma SD9 is a digital single-lens reflex camera (DSLR) produced by the Sigma Corporation of Japan. The camera was launched at the Photo Marketing Association Annual Show on February 18, 2002. It was Sigma's first digital camera, and was the first production camera to use the unique Foveon X3 image sensor, which reads full color at each pixel site. Other sensors detect only one color at each site and interpolate to produce a full-color image.

The SD9 had two separate power systems; one set of CR-123A lithium batteries in the handgrip powered the camera functions, while another pair of CR-V3 batteries or four AA size rechargeable batteries in a battery tray in the base powered the digital functions. This split power system showed that the camera functions (inherited from Sigma's SA-9 film SLR) were not integrated at all with the digital half.

Another unusual feature of the SD9 was its "dust cover" filter right behind the lens mount, to prevent dust getting into the chamber and onto the sensor when changing lenses.[1]

Reviewers and users reported good results in good lighting, but poorer ones in low light using either high ISO sensitivity or longer exposures.

The SD9 was succeeded by an updated model, the SD10, which addressed the power and low-light issues.[2][3]


Sigma Photo Pro[edit]

Postprocessing of raw X3F and JPEG of all digital SIGMA cameras

Version 6.x is free Download for Windows 7+ und Mac OS ab Version 10.7 (6.3.x).Actual Versions are 6.5.4 (Win 7+) and 6.5.5 (MacOSX 10.9+).[4]


  1. ^ "Sigma SD9 – Page 5: Optics". Imaging Resource. 11/09/2002. Check date values in: |date= (help)
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External links[edit]