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入门单反PK 尼康D3100/佳能550D对比评测(6)

2010-10-21 09:40:34 太平洋电脑网

    尼康D3100、佳能550D对焦性能对比

    1、光学取景自动对焦速度对比

    自动对焦速度,尼康一直没有佳能表现得干脆,佳能550D的对焦速度要快不少,尼康D3100实际对焦速度也不会差距太多,但 稍显迟钝,尼康D3100的11点自动对焦系统覆盖范围较广一些,可不必采用对焦后再构图的拍摄方式。两机除中央对焦点以外的各个对焦点精度对比中央对焦 点来说要低,在光线较弱的地方会出现对焦迟疑。

    2、实时取景自动对焦速度对比

    虽然尼康D3100在光学取景的对焦速度不如佳能550D快,但技术改进后的尼康D3100,实时取景自动对焦速度比起以往的产品有了明显的提高,尼康D3100的实时取景对焦速度相当快,与佳能550D不相上下。

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