luminance histogram - how accurate is it ?

Started 7 months ago | Discussions thread
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Christof21
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luminance histogram - how accurate is it ?
7 months ago

Hi,

I would like to know if the luminance histogram is accurate enough to avoid to clip one color channel ? What are the chances to clip one color channel despite the fact that the luminance histogram did not show blown out highlights ? Even if you use UniWB, you can still clip one channel, right ?

Same question with a light meter . If it measures the reflective light, can I trust it ? Let's say I wan to take a picture of a flower with intense red color, would a light meter help me to expose the photo correctly ?

Last question: do you know any camera which show a rgb raw live histogram ?? I guess it would not be difficult to implement it.

Thanks in advance for your answers,

Christophe

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