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Discovering the SD15...

Started Jun 5, 2015 | Discussions thread
xpatUSA
xpatUSA Forum Pro • Posts: 23,016
Re: Roland v. Ted discussion

xpatUSA wrote:

UsingBruce's CIE calculator , the green patch's L*a*b* values give a CIELAB chroma of 50 and a hue of 141 degrees. The same calculator can be used to convert SPP's color-picker RGB values (sRGB working space) into chroma and hue. I estimated the lighting as D55 (diffusing clear plastic roof under part sunlight).

Comparing chroma and hue angle:

Card: 50 & 141°

SD14: 62 & 128°

As we can easily see, the chroma for green from an unadjusted SD14 is more than it should be, which proves to me that the SD14 does not shoot under-saturated greens, in spite of Roland's claim.

Just to rub it, this unadjusted (except EC) shot of my street shows how over-saturated SD14 greens really are:

No way my street looks that green, even after all the rain we've had recently.

Note to self: must develop a camera profile for daylight to use in RawTherapee

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Pedantry is not a felony.
Ted

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