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I have a histogram but can't find any RGB readouts, is it possible?
You can get RGB readout numbers from the Targeted Adjustment tools in the Develop module
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You can get RGB readout numbers from the Targeted Adjustment tools in the Develop module
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The numerical values shown under the histogram (and indeed the histogram itself) are derived from the image as rendered in a unique-to-LR hybrid color space (called Melissa RGB) which is wide gamut having the ProPhoto RGB primaries but with the sRGB Tonal Response Curve. In order to avoid confusion with the standard ICC output spaces, the values are shown as percentages of the 0-255 8 bit scale.
You can see hard values by switching the read-out to L*ab or by turning on Soft Proofing and targeting a standard RGB working space.
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I am talking tethered, I want to check for exposure without stopping tethered shooting, understood that it's 16 bit. I'd be fine with percents or Lab readouts, just a definitive reading. I don't see any readouts in tethered shooting.
Thanks
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mal25 wrote
I am talking tethered, I want to check for exposure without stopping tethered shooting, understood that it's 16 bit. I'd be fine with percents or Lab readouts, just a definitive reading. I don't see any readouts in tethered shooting.
Thanks
You cannot check for exposure in LR when the capture is raw. The Histogram and RGB values do not represent the raw data. Wish it did. You'll need to examine a true, raw Histogram using a product like RawDigger. The RGB values and Histogram in LR are the rendered data, based on whatever settings are invoked at any time, NOT the actual exposure of the raw.
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Thanks I cannot reply someone closed the conversation by marking it
Answered. My point is you can't shoot tethered without checking quality
in a second program. It misses the point of shooting tethered.
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mal25 wrote
My point is you can't shoot tethered without checking quality
in a second program. It misses the point of shooting tethered.
Once you establish ideal metering (compensation) for the raw, you don't need that 2nd program (application). All explained below:
https://www.fastrawviewer.com/blog/spot-meter-exposure
https://www.rawdigger.com/howtouse/exposure-for-raw-or-for-jpegs
http://digitaldog.net/files/ExposeForRaw.pdf