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The original R-D1, announced by Epson in March 2004〔(Epson launches the world's first rangefinder digital camera ), TOKYO, Japan, March 11〕 and discontinued in 2007, was the first digital rangefinder camera. It also was the first consumer digital mirrorless interchangeable-lens camera (MILC) camera. Subsequently, three modifications of the original ''R-D1'' were produced - ''R-D1s'', ''R-D1x'', and ''R-D1xG''. == R-D1 == ''R-D1'' was jointly developed by Seiko Epson and Cosina and manufactured by the latter, which also builds the current Voigtländer cameras. It uses Leica M-mount lenses or earlier Leica screw mount lenses with an adapter. An unusual feature to note on the ''RD-1'' is that it is a digital camera that has a mechanical shutter, despite not being a DSLR. The controls operate in the same way as film-based rangefinder cameras. Data such as white balance, shutter speed, picture quality, and shots remaining are all displayed with servo driven indicators on a dial like a watch face (made by Epson's parent company Seiko). With the rear screen folded away, it is not obviously a digital camera. ''R-D1'' and all of the subsequent modifications of the camera have been using the same 1.5x crop factor sensor, interline-transfer CCD (Sony ICX413AQ). The same sensor as used in Pentax *ist D, Nikon D100. Sensor originally dates to 2002. == R-D1s == The successor of ''R-D1'', the ''R-D1s'' was released in March 2006. The ''Epson R-D1s'' is mechanically identical to the ''R-D1'', but with a firmware upgrade. It adds: * JPEG+RAW mode * Quick view function * Adobe RGB mode * Noise reduction for long exposures Users of ''R-D1'' could upgrade their camera to have the same functions. 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「Epson R-D1」の詳細全文を読む スポンサード リンク
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