Sigma DP2 14MP FOVEON CMOS Sensor Digital Camera with 2.5 Inch TFT LCD
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From the Manufacturer Implementing a large sensor presented all sorts of problems: the cost of the sensor, the difficulty of designing the lens, the high processing capacity required for the image-processing engine, enlarging the...
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From the Manufacturer Implementing a large sensor presented all sorts of problems: the cost of the sensor, the difficulty of designing the lens, the high processing capacity required for the image-processing engine, enlarging the circuit board, increasing the memory capacity, and so on. Until these problems could be overcome, it was generally accepted that DSLRs used large sensors, and compacts used small ones. Eventually, these problems were effectively solved, allowing sensors to be made smaller. However, this involved a trade-off: reduced image quality. From then on, amateur photographers dreamed of a compact digital camera with an SLR-sized image sensor. A camera small and light enough to carry around everywhere, yet offering the technology for serious photography. Those dreams have come true with Sigmas DP series. The DP Series: A New Lineage The DP2's integral standard lens is brand-new and purpose-designed, with a focal length equivalent to 41mm in a 35mm camera. We wanted to allow photographic effects beyond the scope of the focal length of the wide-angle lens of the DP1, which is equivalent to 28mm in a 35mm camera. So we gave the DP2 a standard-range focal length more suitable for snapshots and portraits. The Camera That Turns Ordinary into Awesome The DP1's wide-angle lens is good with perspective, geared towards dynamic shots of scenery, buildings, celebrations. The standard lens built into the DP2, on the other hand, has a narrower field angle, giving a stronger effect, making the subject stand out. In other words, we've given it the ability to create the photo that you, and only you, can see in your mind's eye. Naturally, this is great for portraits. And for capturing the elusive beauty of ordinary, everyday subjects, this standard lens is ideal. Its focal length is longer than the DP1's lens. So, at low F-numbers (larger apertures), you can create amazing pictures by deliberately blurring the background. This makes the subject stand out sharply, in a compelling, almost mystical way. In this sense, you could say the DP2 turns ordinary into awesome. Sigma DP2 Highlights & Features Full Scale Sensor Startlingly evocative image quality At 20.7 x 13.8mm, the DP2's 14-megapixel image sensor is SLR-sized. This is about 12 times larger than the 1- to 2.5-inch sensor, and 7 times larger than a 1- to 1.8-inch sensor used in a conventional digital compact. This generous size takes the DP2's image quality to a different dimension. Picture this. Light traveling through a small lens is captured by a small sensor and turned into an image. Light travelling through a large lens is captured by a large sensor and turned into an image. Whats the difference between these two images? Essentially, it's a difference in quality. In the case of the small image sensor, the image is magnified by a high ratio when it's printed or displayed on a computer screen. This makes it tricky to reproduce the dynamism and 3-D feel of the subject. The DP2 does just that by using a large integral image sensor. The natural background blur you get with an SLR The small size of the image sensor used in a conventional compact digital camera explains why it captures rather flat, unmodulated images. If the image sensor is small, the focal length of the lens is short. The shorter the focal length of the lens, the greater the depth of field - in other words, the greater the range of distances over which the lens can focus. The prosaic quality of the images captured by an ordinary compact digital camera is caused by the depth of field characteristic of a small image sensor: the lens focuses evenly on everything between the subject and the background, eliminating any cadence within the image. The DP2, however, has an SLR-sized image sensor, so its standard lens is equivalent to 41mm in a 35mm camera, and with an F-number of 2.8, it has a large aperture as well. This means you can utilize the kind of cool natural background-blur effects you would normally expect of an SLR. Direct Image Sensor The DP2's Foveon X3 direct image sensor utilizes the special
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