 | This article'suse ofexternal links may not follow Wikipedia's policies or guidelines. Pleaseimprove this article by removingexcessive orinappropriate external links, and converting useful links where appropriate intofootnote references.(August 2024) (Learn how and when to remove this message) |
 | This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Sigma SD10" – news ·newspapers ·books ·scholar ·JSTOR(July 2025) (Learn how and when to remove this message) |
 | |
| Overview | |
|---|---|
| Maker | Sigma Corporation |
| Type | Digital single-lens reflex |
| Lens | |
| Lens | Interchangeable (Sigma SA mount) |
| Sensor/medium | |
| Sensor | 20.7 mm × 13.8 mmFoveon X3 sensor |
| Maximumresolution | 2268 × 1512 × 3 (10.3 millioneffective pixels, 3.43 megapixel output image size) |
| Film speed | 100–1600 in 1EV steps |
| Storage media | CompactFlash (CF) (Type I or Type II) andMicrodrive (MD) |
| Focusing | |
| Focus modes | One-shot, Continuous, Manual |
| Focus areas | 1 point |
| Exposure/metering | |
| Exposure modes | Programmed, shutter-priority, aperture priority, manual |
| Exposuremetering | TTL, full aperture, zones |
| Metering modes | 8-segment evaluative, center area (about 7.5%), Center-weighted average |
| Flash | |
| Flash | none, sync at 1/180 second |
| Shutter | |
| Shutter | electronic focal-plane |
| Shutter speed range | 30 s to 1/6000 s |
| Continuous shooting | up to 2.5 frames per second |
| Viewfinder | |
| Viewfinder | Optical, pentaprism |
| Image processing | |
| White balance | 6 presets, auto, and custom |
| General | |
| LCD screen | 1.8-inch (45 mm), 150,000 pixels |
| Battery | 4×AA NiMH or 2×CR-V3 |
| Weight | 785 g (28 oz) (body only) |
TheSigma SD10 is adigital single-lens reflex camera (DSLR) manufactured by theSigma Corporation of Japan. It was announced on October 27, 2003, and is an evolution of the previousSD9 model, addressing many of the shortcomings of that camera. The Sigma SD10 is unique amongst DSLRs in that it uses a full-colour Foveon sensor (instead of one with acolour filter array) and that it only producesraw format images that require post-processing on a computer.
Like its predecessor, the SD10 uses a sensor with the uniqueFoveon X3 sensor technology. The 10.2-million-pixelraw file generated from this sensor is processed to produce a 3.4 megapixel size image file. Although the image file is smaller than images from competing 10 megapixel cameras, it is made from the same number of measured data values because the Foveon sensor detects full-colour data (three values) at each photosite; the actual resolution contained in its 3.4 MP images is about the same as a conventionalBayer filter sensor of 7–9 MP.[1] Sigma and Foveon count each red, green, and blue sensor as a pixel, and state the camera has 10.2 million pixels; similarly, companies selling Bayer filter cameras also count each single-colour sensor element as a pixel.
Unlike other DSLR cameras marketed concurrently, the SD10 performs no in-camera processing to common image formats such asJPEG andTIFF. Instead, it saves images in its own .X3F format, which retains all the information the camera captured. Processing on a computer is required to use these files. Sigma provides the Foveon-written SIGMA Photo Pro application for this purpose; in addition,Adobe Photoshop CS2 supports the format, as do several other image-processing applications.
The camera supports single-shot, continuous, 2 or 10 second self-timer, mirror lock-up, and autoexposure bracketing.
Four different exposure modes are supported: aperture priority (A), shutter speed priority (S), manual (M) and program automatic (P).
The SD10 supports onlySigma SA mount lenses. Only Sigma produces lenses to fit this mount. Third-party converters exist for a number of other lens mounts, although no automatic features are supported. Many CanonEF mount lenses can be converted to SA mount while retaining autofocus and camera controlled aperture settings, however optical stabilisation will not work.
