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The Sony Cyber-shot DSC-R1 is a bridge digital camera announced by Sony in 2005 (and discontinued in 2006). It featured a 10.3 megapixel APS-C CMOS sensor (21.5 × 14.4 mm), a size typically used in DSLRs and rarely used in bridge cameras (which usually use 2/3" (= 6.6 × 8.8 mm) or 1/1.8" (= 5.3 × 7.1 mm)). This was the first time such a large sensor was incorporated into a bridge camera.〔("Sony Cyber-shot DSC-R1 announced" by ePHOTOzine )〕 Besides the APS-C sensor, the DSC-R1 also featured a 14.3–71.5 mm Carl Zeiss Vario-Sonnar T * lens, providing for an angle of view equivalent to 24–120 mm on a full frame camera. ==Advantages== Compared to a standard DSLR the Sony DSC-R1 had the following advantages: * since there is no mirror between the sensor and the lens, the lens can be positioned closer to the sensor, which improves the performance at wide angle. The back focal length of the DSC-R1 in wide-angle mode is 2.1 millimeters, which is much smaller than the wide angle back focal length found typically in DSLRs (up to 30 millimeters and more) * the image in the EVF and LCD screen is bright and the light is amplified. An optical viewfinder instead does not amplify the light, so that it becomes difficult to frame and manually focus when there is not sufficient light. * technically no dust problems, since the DSC-R1 has a fixed lens, though dust can enter the lens itself while zooming * silent operation, as there is no swinging mirror or physical shutter system * as there is no shutter system there is essentially no limit to flash sync; photographs can be taken in broad daylight with fill flash at speeds of 1/1,000th of a second or faster * fewer movable parts, therefore greater reliability * supports RAW〔(Sony DSC-R1 review by ''Luminous Landscape'' )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sony Cyber-shot DSC-R1」の詳細全文を読む スポンサード リンク
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