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The Canon EF 28–70mm 2.8L is an EF mount wide-to-normal zoom lens made by Canon from 1993 to 2002. It was discontinued in 2002, and replaced by the 24–70mm 2.8L. Among zoom lenses, it is known for excellent contrast, color rendition and sharpness, and it is widely considered to be one of the finest wide-to-normal zoom lenses ever produced. Like many other zoom lenses, it exhibits some barrel distortion at the wide end of its range. A unique aspect of the 28–70mm 2.8L (and 24–70mm 2.8L) is that its barrel extends as it zooms toward its shortest focal length. When used with the supplied "petaled" lens hood, which attaches to a non-moving part of the lens, this extension results in a properly matched shade at every angle of view. Most zoom lens hoods are designed for only the widest angle of view, offering progressively inadequate shade at longer focal lengths. == Canon Standard Zoom Series== * Canon EF 28–135mm 3.5–5.6 IS USM * Canon EF 17–40mm 4L USM * Canon EF 24–70mm2.8L USM * Canon EF 24–105mm 4 IS USM 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 28–70mm lens」の詳細全文を読む スポンサード リンク
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