Sigma SD10
Camera model From Wikipedia, the free encyclopedia
Camera model From Wikipedia, the free encyclopedia
The Sigma SD10 is a digital single-lens reflex camera (DSLR) manufactured by the Sigma Corporation of Japan. It was announced on October 27, 2003, and is an evolution of the previous SD9 model, addressing many of the shortcomings of that camera. The Sigma SD10 cameras are unique in the digital DSLR field in using full-color sensor technology, and in that they only produce raw format images that require post-processing on a computer.
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| |
| Overview | |
|---|---|
| Type | Digital single-lens reflex |
| Lens | |
| Lens | Interchangeable (Sigma SA mount) |
| Sensor/medium | |
| Sensor | 20.7 mm × 13.8 mm Foveon X3 sensor |
| Maximum resolution | 2268 × 1512 × 3 (10.3 million effective pixels, 3.43 megapixel output image size) |
| Film speed | 100–1600 in 1 EV steps |
| Storage media | CompactFlash (CF) (Type I or Type II) and Microdrive (MD) |
| Focusing | |
| Focus modes | One-shot, Continuous, Manual |
| Focus areas | 1 point |
| Exposure/metering | |
| Exposure modes | Programmed, shutter-priority, aperture priority, manual |
| Exposure metering | 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 (body only) |
Like its predecessor, the SD10 uses a sensor with the unique Foveon X3 sensor technology. The 10.2-million-pixel raw 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-color data (three values) at each photosite; the actual resolution contained in its 3.4 MP images is about the same as a conventional Bayer/CFA 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 sensor cameras also count each single-color sensor element as a pixel.
Unlike other DSLR cameras marketed concurrently, the SD10 performs no in-camera processing to common image formats such as JPEG and TIFF. 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 auto exposure bracketing.
Four different exposure modes are supported: aperture priority (A), shutter speed priority (S), manual (M) and program automatic (P).
The SD10 supports only Sigma 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 Canon EF mount-based lenses can be converted to Sigma AF mount retaining autofocus and camera controlled aperture setting, however optical stabilisation will not work.
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