Then what do you mean?
May 31, 2023
181
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Ah ,zero light - not "zero exposure" ... now we are saying the same thing.
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If exposure is defined in terms of lux, then it would be zero exposure for the 1000nm narrowband light source.
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You said:
"In your way of thinking, does the CFA spectral response affect the exposure? Does the hot mirror affect the exposure?"Since "the exposure" can mean almost anything these days - here's what meant:
If Hm is constant upon a sensor then a) replacing the existing CFA with a different one will affect the photo-sensor's response or b) if the UV/IR filter is removed, will affect the photo-sensor's response.
Where Hm=0.65Lt/N^2 and L and t/N^2 are constant
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As you like.
I'm unaware of putting any compulsion on you to insult me. Consider this, the CIE efficacy curve is a perceptual one, not a physical one. The physical ones are the standard illuminants. A really well designed exposure meter should be weighting its response according to the luminosity curve, but very few do. I know of no camera's response that does either. So you might calibrate the meter using a light source (best use the appropriate standard illuminant), which the meter will weight appropriately. Take a photo setting the exposure according to this meter. Now use a different light source with a different spectral distribution. Again meter for the same exposure. Because the camera's sensor response is not the same as the meter's then the apparent exposure for the camera will be different.
Just how is it a straw man?
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No comment.
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No comment.
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It sounds like you are taking the "sensor" to be the combination of silicon chip, CFA, microlenses, and the rest of the sensor stack. Right?
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No comment.
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Hard to have a discussion with no agreement on definitions...
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Erm, OK (backs off slowly and quietly).
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It's whatever exposure that I prefer, on an individual image. It holds the proper "key" for the subject and mood of light, with ample detail in both shadows and highlights. An old Fuji EXR camera gets it right for me most of the time from a jpeg. When not, I shoot again after a minor adjustment to EV.
