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A mirrorless interchangeable lens camera (MILC, commonly referred to simply as a "mirrorless camera"), is a camera with an interchangeable lens that does not have a mirror reflex optical viewfinder. They are a subset of interchangeable lens cameras, a category that also includes single-lens reflex cameras (SLRs or DSLRs for digital models). Mirrorless cameras are designed to have the advantage of smaller size, lighter weight, and lower cost than SLRs, while still allowing users to swap lenses, unlike most compact cameras. Mirrorless cameras constituted five percent of total camera shipments in 2013.〔(【引用サイトリンク】url=http://www.dpreview.com/news/2013/08/01/camera-shipments-2013-CIPA )〕 In 2015, mirrorless-cameras accounted for 26 percent of interchangeable-lens camera sales outside the Americas, but only about 16 percent in the U.S.〔DPReview June 3, 2015 http://www.dpreview.com/articles/6223902518/sony-rides-wave-of-us-mirrorless-sales-surge〕 Mirrorless cameras are available with a variety of sensor sizes including 1/2.3", 1/1.7", 1", Micro 4/3, APS-C, and full frame. When sales of DSLRs fell in 2013, many camera manufacturers, including Nikon, responded by releasing many Mirrorless cameras including the lenses.〔(【引用サイトリンク】title=Nikon 1 V3 camera unveiled: $1,200, 120fps slow motion, 20fps continuous shooting )〕 , several mirrorless camera systems were available. In chronological order (by their introduction) and referring to the adopted lens-mount type, they are: Epson R-D1 using Leica M mount in 2004; Leica itself in 2006; Micro Four Thirds mount for Olympus and Panasonic; Samsung NX-mount; Sony E-mount; Nikon 1-mount; Pentax Q mount for Pentax small-sensor Mirrorless (Pentax Q); K-mount for both Pentax DSLRs and Pentax large-sensor mirrorless; X-mount; and Canon EF-M mount. (Sony's full-frame Mirrorless, introduced in late 2013, use the same E-mount as the company's APS-C Mirrorless, but attain full-frame coverage with "FE" lenses.) == Types of digital cameras == Several types of digital cameras are available on the market, including: *''DSLR'' ILC cameras, which have an optical viewfinder for viewing the image through the lens and usually have a relatively large sensor. The mirror moves out of the way for exposure allowing the light to hit the sensor. *''Compact'' cameras, which are usually equipped with small sensors, a fixed lens, and an electronic viewfinder (e.g., a rear-facing LCD display). Smaller sensor may have relatively poor imaging in some situations such as low light, as it is unable to capture as much light as a larger sensor. *The ''fixed mirror'' Sony SLT camera, which uses a semi-transparent mirror mounted in a fixed position and has a relatively large sensor and an electronic viewfinder. The mirror is used for continuous phase-contrast auto-focusing for still and motion pictures. 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「Mirrorless interchangeable-lens camera」の詳細全文を読む スポンサード リンク
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