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Sigma DP1

Ralf Jurrien
PMA 2010 Report
Thursday 8th, March 2007
Posted by: Ralf Jurrien

Sigma announces the launch of the Sigma DP1 using three silicon embedded layers of photo sensors stacked to take advantage of silicon’s ability to absorb red, green and blue light at different respective depths. The size of image sensor used in DP1 camera is approximately 10 times larger than those used in an ordinary point and shoot camera. Large size image sensor takes advantage of larger pixels. So far point and shoot digital cameras incorporated small size image sensors, and researches for increasing the number of pixels by keeping the image sensor small is still continuing. However, there are limitations in these researches, because keeping image sensor size small will result poor capture of the light poorly.

Sigma DP1

Sigma DP1 - Digital Signal Processor
In this respect, enlarging the image sensor will result in better capturing color signals. The direct image sensor featured in the Sigma DP1 ensures the capture of full and complete color. This camera incorporates both RAW and JPEG image recording formats enabling photographers to capture the highest possible picture definition and smaller file sizes. “TRUE” (Three-layer Responsive Ultimate Engine) DSP (Digital Signal Processor) suited for Foveon three silicon embedded layers direct image sensor is newly developed (joint development with Fujitsu Limited) and incorporated into DP1 first time. The unique image processing algorithm developed throughout the development of SD9, SD10 and SD14 cameras is incorporated into “TRUE” and enables high-speed image processing.

Sigma DP1 camera - Asperical lens
The accumulated lens design technology and SD series are used for DP1 development. A 16.6mm F4 lens, with a wide angle field of view equivalent to 28mm on a 35mm film camera, has been specially developed to maximize the image quality in conjunction with the full color capture image sensor. Glass mold aspherical lens provide correction for all types of aberrations and capture accurate, full color image information.

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Sigma DP1 compact camera - 2.5 inch LCD monitor
It has compact dimensions of 113.3mm / 4.5in. (W) Χ 59.5mm / 2.34in. (H) Χ 50.3mm / 2.0in. (D) and lightweight of 240g/8.5ounces. Its compact body and lightweight design makes it easy to carry everywhere. The Sigma DP1 camera features a new, large 2.5inch, 230,000-pixel resolution LCD monitor. The LCD monitor displays 100% of the image, allowing the photographer to easily and accurately confirm the image composition. DP1 camera is equipped with a hot-shoe thus allowing the attachment of dedicated external flash and high performance external viewfinder (VF11).

Sigma DP1 digital camera - Specifications
• Image Sensor: Foveon X3 (CMOS)
• Image Sensor Size: 20.7Χ13.8mm
• Number of Pixels: Effective Pixels approx. 14.06MP (2652Χ1768Χ3 layers)
• Aspect Ratio: 3 : 2
• Lens: 16.6mm F4(35mm equivalent focal length:28mm)
• Lens Construction: 5 Groups, 6 Elements
• Shooting Range: 30cm~∞
• Storage Media: SD Card /SDHC compatible
• Recording Format: Exif 2.21, DCF 2.0, DPOF
• Recording Mode: Losless compression RAW data (12-bit), JPEG (High, Medium Low), Movie, Voice
• Auto Focus: Contrast Detection Type
• AF Point: 9-Points
• Focusing Modes: Single, 9-points multi
• Exposure Compensation: ±3EV (1/3 stop increments)
• Auto Bracketing: Appropriate, under, over; 1/3EV steps up to ±3EV for appropriate exposure
• Shutter Speed: 1/4000sec. to 15sec.
• Built-in Flash: Pop-up type (manually)
• Flash Coverage Range: 30cm-2.1m(at ISO200)
• External Flash Sync.: Hotshoe (X Sync. Contact)
• Drive Modes: [1] Single, [2] Continuous, [3] Self Timer(2sec. /10sec.)
• LCD Monitor: TFT Color LCD Monitor
• Monitor Size: 2.5 inches
• LCD Pixels: approx.230,000 pixels
• Interface: USB(USB2.0), Video Out (NTSC/PAL), Audio Out(Monaural)
• Power: Li-ion Battery Pack BP-31, Battery Charger BC-31, AC Adapter (Optional)
• Dimensions: 113.3mm/4.5” (W) Χ 59.5mm /2.3”(H) Χ50.3mm/2” (D)
• Weight: 240g /8.5oz (excluding batteries)

About Sigma
After nearly 40 years of pioneering new and better ways to capture and portray the ordinary - and extraordinary - Sigma is still creating new avenues of expression with innovative designs and enhancements in zoom and non-zoom lenses and single lens reflex cameras. As one of the first manufacturers to successfully introduce the interchangeable lens, Sigma's well-earned reputation for originality, innovation and leadership is your guarantee of the world's most advanced line of photographic products. Products you and millions of photographers worldwide turn to when quality, reliability and professional results count most.

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The PMA show, or Photo Marketing Association, continues its yearly tradition of maintaining a network of photo imaging as well as the experience and know-how of the industry. The PMA represents 20,000 members from over 100 countries, who are all active within the imaging industry. As a reflection of the changes in the market, the PMA organization has also changed and has become more diverse. Nowadays, the member group consists of representatives coming from photo retail, manufacturers, commercial photo labs, professional sports and news photography, in addition to small album print suppliers and photo processing centers. The PMA 2012 Trade show focuses on an industry which is heavily affected by the unstable situation of the global financial economy. However, whether the latter will also stand in the way of the innovation and product introductions, remains to be revealed by the PMA International Convention & Trade Show in Anaheim Convention Center (California, US).