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arkel




註冊: 2002-09-07

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題目測光問題     Post time: 9 月 26 日

我部Pentax Optio 230有3種測光模式
一種係一點測光...一種係三點...一種係五點...
其實有咩分別呢...係咩地方應該用邊種呢?
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samlau




註冊: 2002-09-25

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題目Re: 測光問題     Post time: 9 月 30 日

If I am not mistaken, your 1 point, 3 point, 5 point are "Spot", "Center Weight" and "Multi Segment".

Spot - use it when you want a small object in the whole picture to have correct exposure, don't care about the rest. e.g. a small candle in a room, a small pet in a big room with limited lighting, you only want the object visible. Metering is effective in a very area, like focus mark on the viewfinder only

Center Weight - (mostly used, older cameras, old SLRs are more or less center weight only) use it in most occasions, for 60% of metering is concetrate in the center of the picture, 40% on the rest of the composition. Center weight is good for portrait

Mutli Segment - you know what it is, average is taken from many areas. Good of scenery.
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