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Canon Inc. has produced seven different 24mm lenses for its Canon EF- and its Canon EF-S lens mount. Three have been discontinued after updated replacements were announced. * EF 24mm 1.4L USM, introduced December 1997. (discontinued in 2008, replaced by EF 24mm 1.4L II USM) * EF 24mm 1.4L II USM, introduced December 2008. * EF 24mm 2.8, introduced November 1988. (discontinued in 2012, replaced by EF 24 2.8 IS USM) * EF 24mm 2.8 IS USM, announced February 2012, available since June 2012.〔(【引用サイトリンク】title=EF 24mm f/2.8 IS USM )〕 * EF-S 24mm 2.8 STM, announced September 2014.〔(【引用サイトリンク】title=EF-S24mm f/2.8 STM )〕 Unlike the other 24mm lenses, it will mount only on bodies that support the EF-S mount. It will mount on all current Canon bodies with APS-C sensors, as well as older APS-C bodies dating to the 2003 introduction of the EF-S mount (in other words, the EOS 10D and older bodies are not compatible). It will not mount on any body with a full-frame or APS-H sensor. As it is designed for Canon APS-C bodies, its field of view is equivalent to a 38mm lens on a full-frame sensor. Compared to the EF 24 2.8 IS USM, the EF-S lens loses IS, but lists for about a fourth of the price. The STM offers advantages for video shooting over USM, specifically quieter autofocus. * TS-E 24mm 3.5L, introduced April 1991. (discontinued, replaced by TS-E 24mm 3.5L II) * TS-E 24mm 3.5L II, introduced June 2009. ==Specifications of the EF 24mm lenses== 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「Canon EF 24mm lens」の詳細全文を読む スポンサード リンク
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