|
Single-Lens Translucent (SLT) is a Sony proprietary designation for Sony Alpha cameras which employ a pellicle mirror, electronic viewfinder, and phase-detection autofocus system. They employ the same Minolta A-mount as Sony Alpha DSLR cameras.〔(【引用サイトリンク】work=Sony.com )〕 Sony SLT cameras have a semi-transparent fixed mirror which diverts a portion of incoming light to a phase-detection autofocus sensor, while the remaining light strikes a digital image sensor. The image sensor feeds the electronic viewfinder, and also records still images and video on command. The utility of the SLT design is to allow full-time phase-detection autofocus during electronic viewfinder, live view, and video recording operation.〔(【引用サイトリンク】title=Sony Single-Lens Translucent Cameras )〕〔(【引用サイトリンク】title=Mirrorless Cameras: A Primer )〕 With the advent of digital image sensors with integrated phase-detection, the SLT design is no longer required to accomplish this goal, as evidenced by cameras such as the Sony NEX-5R, Fujifilm X-100s, and Nikon 1.〔(【引用サイトリンク】title=Fujifilm's phase detection system explained )〕〔(【引用サイトリンク】title=Nikon V1, J1: Two new compact system cameras for Nikon's mirrorless debut )〕 The term "translucent" is a misnomer for the actual SLT design, which employs a pellicle mirror that is not translucent. Pellicle mirrors have been used in single-lens reflex cameras from at least the 1960s (see Canon Pellix). ==List of SLT cameras== All of the above cameras record 1920x1080 video at 60i/30p, in MPEG-4, AVCHD or H.264 formats. Source: summarised from the (full comparison table at DP Review ). 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 SLT camera」の詳細全文を読む スポンサード リンク
|