| 21. | The light meter used a dual-concentric segmented silicon photo-diode to provide spot or centerweighted readings.
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| 22. | Most modern light meters use silicon or CdS sensors.
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| 23. | The light meter used a dual-concentric segmented silicon photodiode to provide spot or center-weighted readings.
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| 24. | The most common use of such light meters is measuring the exposure value for photography.
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| 25. | A light meter can automatically calculate the ratio of key plus fill to fill alone.
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| 26. | Prior to this, TTL metering required a special prism viewfinder with a built-in light meter.
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| 27. | It offered numerous improvements over the older model including an integrated rangefinder and coupled light meter.
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| 28. | Later models, such as the Baldessa 1b, introduced a coupled rangefinder and inbuilt selenium light meter.
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| 29. | Magubane pulled out his light meter : " When he started talking, I opened the back.
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| 30. | Built-in light meters and electronic shutters combined with microelectronics to make exposure control simpler and faster.
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