The Sigma SD9 is a

digital single-lens reflex camera A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor. The reflex design scheme is the primary difference between ...

(DSLR) produced by the

Sigma Corporation is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan. Although Sigma produces several camera models, ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. The camera was launched at the

Photo Marketing Association The Photo Marketing Association International (PMA) International Convention and Trade Show was an annual imaging technology trade show conducted by PMA held in Las Vegas. Since 2012, the show has been branded as PMA@CES, reflecting its rescheduling ...

Annual Show on February 18, 2002. It was Sigma's first

digital camera A digital camera is a camera that captures photographs in digital memory. Most cameras produced today are digital, largely replacing those that capture images on photographic film. Digital cameras are now widely incorporated into mobile device ...

, and was the first production camera to use the unique

Foveon X3 The Foveon X3 sensor is a digital camera image sensor designed by Foveon, Inc., (now part of Sigma Corporation) and manufactured by Dongbu Electronics. It uses an array of photosites that consist of three vertically stacked photodiodes. Each o ...

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 A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or prima ...

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 The 9K31 ''Strela-1'' (russian: 9К31 «Стрела-1»; en, arrow) is a highly mobile, short-range, low altitude infra-red guided surface-to-air missile system. Originally developed by the Soviet Union under the GRAU designation 9K31, it i ...

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. 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.

Software

Sigma Photo Pro

Postprocessing of

raw Raw is an adjective usually describing: * Raw materials, basic materials from which products are manufactured or made * Raw food, uncooked food Raw or RAW may also refer to: Computing and electronics * .RAW, a proprietary mass spectrometry dat ...

X3F and JPEG of all digital SIGMA cameras Version 6.x is free Download for Windows 7+ und

Mac OS Two major famlies of Mac operating systems were developed by Apple Inc. In 1984, Apple debuted the operating system that is now known as the "Classic" Mac OS with its release of the original Macintosh System Software. The system, rebranded "M ...

ab Version 10.7 (6.3.x).Actual Versions are 6.5.4 (Win 7+) and 6.5.5 (MacOSX 10.9+).

References

External links

Review at dpreview.com

Sigma USA page on the SD9

SD9 user image galleries

SD 9 CNET specs

SD 9 Manual PDF
{{Sigma Cameras SD09 Cameras introduced in 2002